/* roulang page: index */
/* ============ 设计变量 ============ */
:root {
  --brand: #7C3AED;
  --brand-light: #8B5CF6;
  --brand-dark: #5B21B6;
  --canvas: #15101D;
  --panel: #201A2B;
  --panel-light: #2A2238;
  --teal: #2DD4BF;
  --pink: #FF5C8A;
  --text-main: #F5F0FA;
  --text-secondary: #B9AEC9;
  --text-muted: #8A7E9C;
  --border: rgba(255, 255, 255, .08);
  --radius-card: 16px;
  --radius-img: 12px;
  --radius-btn: 999px;
  --shadow-card: 0 10px 30px rgba(0, 0, 0, .18);
  --shadow-hover: 0 18px 40px rgba(124, 58, 237, .18);
  --container: 1200px;
  --section-pad: 100px;
  --transition: .3s ease;
}
/* ============ 基础 Reset ============ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--canvas);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--text-secondary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--brand-light); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--brand-light); outline-offset: 2px; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
ul, ol { list-style: none; }
input { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-pad) 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-head .tag { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .5px; color: var(--teal); background: rgba(45, 212, 191, .1); padding: 5px 14px; border-radius: 999px; margin-bottom: 14px; }
.section-head h2 { font-size: 34px; line-height: 1.3; font-weight: 700; }
.section-head p { color: var(--text-secondary); font-size: 16px; margin-top: 12px; }
/* ============ 顶部导航 ============ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 14px 0;
  transition: background .3s ease, box-shadow .3s ease, padding .3s ease;
  background: rgba(21, 16, 29, .7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(21, 16, 29, .88);
  border-bottom-color: rgba(255, 255, 255, .06);
  box-shadow: 0 8px 30px rgba(0, 0, 0, .3);
  padding: 10px 0;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--text-main); letter-spacing: .5px; }
.logo .logo-icon { width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, var(--brand), var(--brand-dark)); display: flex; align-items: center; justify-content: center; }
.logo .logo-icon svg { width: 18px; height: 18px; fill: white; }
.nav-menu { display: flex; align-items: center; gap: 6px; }
.nav-menu a { padding: 8px 16px; font-size: 15px; font-weight: 500; color: var(--text-secondary); border-radius: 999px; transition: all .25s ease; }
.nav-menu a:hover { color: var(--text-main); background: rgba(124, 58, 237, .12); }
.nav-menu a.active { color: #fff; background: var(--brand); }
.header-cta { display: flex; align-items: center; gap: 12px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--brand); color: #fff;
  padding: 10px 24px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 600;
  transition: all .3s ease;
  border: 1px solid transparent;
}
.btn-primary:hover { background: var(--brand-light); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(124, 58, 237, .35); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, .2);
  padding: 10px 24px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 500;
  transition: all .3s ease;
}
.btn-secondary:hover { border-color: var(--brand); color: var(--brand-light); background: rgba(124, 58, 237, .08); }
.menu-toggle { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; border-radius: 10px; border: 1px solid rgba(255, 255, 255, .12); color: var(--text-main); }
.menu-toggle svg { width: 22px; height: 22px; }
/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 76vh;
  display: flex;
  align-items: center;
  padding: 160px 0 100px;
  background: url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(105deg, rgba(21, 16, 29, .96) 0%, rgba(21, 16, 29, .82) 50%, rgba(32, 26, 43, .55) 100%);
}
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(0deg, var(--canvas) 0%, transparent 30%);
}
.hero-content { position: relative; z-index: 2; max-width: 720px; }
.hero h1 { font-size: 44px; line-height: 1.25; font-weight: 800; letter-spacing: .5px; }
.hero h1 .highlight { color: var(--brand-light); }
.hero-sub { margin-top: 20px; font-size: 17px; color: var(--text-secondary); line-height: 1.8; max-width: 620px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 34px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 40px; margin-top: 52px; padding-top: 28px; border-top: 1px solid rgba(255, 255, 255, .1); }
.hero-stat .num { font-size: 28px; font-weight: 800; color: var(--text-main); }
.hero-stat .num span { color: var(--brand-light); }
.hero-stat .label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
/* ============ Pill 分类条 ============ */
.pill-bar {
  position: relative;
  z-index: 10;
  background: var(--canvas);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  padding: 16px 0;
}
.pill-scroll { display: flex; gap: 10px; overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none; }
.pill-scroll::-webkit-scrollbar { display: none; }
.pill-item {
  flex-shrink: 0;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 20px;
  border-radius: 999px;
  font-size: 14px; font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, .1);
  background: transparent;
  transition: all .25s ease;
}
.pill-item:hover { background: rgba(124, 58, 237, .12); color: var(--text-main); border-color: rgba(124, 58, 237, .3); }
.pill-item.active { background: var(--brand); color: #fff; border-color: var(--brand); font-weight: 600; }
.pill-item.active:hover { background: var(--brand-light); color: #fff; }
.pill-hint { font-size: 12px; color: var(--text-muted); text-align: right; margin-top: 6px; }
/* ============ 入口矩阵 ============ */
.entry-matrix { position: relative; margin-top: -2px; }
.entry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.entry-card {
  display: flex; align-items: flex-start; gap: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: all .3s ease;
}
.entry-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 58, 237, .45);
  box-shadow: var(--shadow-hover);
  background: var(--panel-light);
}
.entry-icon {
  flex-shrink: 0;
  width: 46px; height: 46px; border-radius: 12px;
  background: rgba(124, 58, 237, .14);
  display: flex; align-items: center; justify-content: center;
  color: var(--brand-light);
  transition: all .3s ease;
}
.entry-card:hover .entry-icon { background: var(--brand); color: #fff; }
.entry-icon svg { width: 22px; height: 22px; }
.entry-card strong { display: block; font-size: 16px; font-weight: 600; color: var(--text-main); }
.entry-card .entry-desc { font-size: 13px; color: var(--text-secondary); margin-top: 4px; line-height: 1.6; }
/* ============ 里程碑 ============ */
.milestones { background: linear-gradient(180deg, var(--canvas) 0%, var(--panel) 100%); }
.milestone-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; }
.milestone-grid::before {
  content: '';
  position: absolute; top: 22px; left: 4%; right: 4%; height: 2px;
  background: linear-gradient(90deg, rgba(124, 58, 237, .1), rgba(124, 58, 237, .5), rgba(45, 212, 191, .3));
}
.milestone-item { position: relative; padding-top: 56px; }
.milestone-item::before {
  content: '';
  position: absolute; top: 13px; left: 0;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--canvas);
  border: 3px solid var(--brand);
  box-shadow: 0 0 0 4px rgba(124, 58, 237, .15);
}
.milestone-item .year { font-size: 13px; font-weight: 700; color: var(--teal); letter-spacing: .5px; }
.milestone-item h3 { font-size: 18px; font-weight: 600; margin-top: 8px; color: var(--text-main); }
.milestone-item p { font-size: 14px; color: var(--text-secondary); margin-top: 6px; line-height: 1.7; }
/* ============ 价值主张 ============ */
.value-prop { background: var(--canvas); }
.value-layout { display: grid; grid-template-columns: 1fr 1.3fr; gap: 64px; align-items: start; }
.value-left h2 { font-size: 32px; line-height: 1.35; font-weight: 800; }
.value-left h2 .strong { color: var(--brand-light); }
.value-left p { color: var(--text-secondary); margin-top: 16px; font-size: 16px; line-height: 1.8; }
.value-items { display: flex; flex-direction: column; gap: 28px; }
.value-item { display: flex; gap: 20px; align-items: flex-start; }
.value-item .v-icon {
  flex-shrink: 0;
  width: 52px; height: 52px; border-radius: 14px;
  background: rgba(124, 58, 237, .12);
  display: flex; align-items: center; justify-content: center;
  color: var(--brand-light);
}
.value-item .v-icon svg { width: 24px; height: 24px; }
.value-item h3 { font-size: 18px; font-weight: 600; color: var(--text-main); }
.value-item p { font-size: 14px; color: var(--text-secondary); margin-top: 6px; line-height: 1.7; }
/* ============ 功能分组 ============ */
.features { background: var(--panel); }
.feature-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; }
.feature-grid .feature-card:first-child { grid-row: span 2; }
.feature-card {
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all .35s ease;
  display: flex; flex-direction: column;
}
.feature-card:hover { transform: translateY(-4px); border-color: rgba(124, 58, 237, .5); box-shadow: var(--shadow-hover); }
.feature-media { position: relative; overflow: hidden; aspect-ratio: 16 / 10; }
.feature-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.feature-card:hover .feature-media img { transform: scale(1.05); }
.play-badge {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(.85);
  width: 52px; height: 52px; border-radius: 50%;
  background: rgba(124, 58, 237, .85);
  display: flex; align-items: center; justify-content: center;
  color: #fff; opacity: 0;
  transition: all .35s ease;
}
.feature-card:hover .play-badge { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.play-badge svg { width: 20px; height: 20px; fill: #fff; margin-left: 2px; }
.feature-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.feature-body h3 { font-size: 20px; font-weight: 700; color: var(--text-main); }
.feature-body p { font-size: 14px; color: var(--text-secondary); margin-top: 10px; line-height: 1.7; flex: 1; }
.feature-link { margin-top: 16px; display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--brand-light); }
.feature-link:hover { color: var(--teal); }
.feature-link span { transition: transform .25s ease; font-size: 18px; }
.feature-link:hover span { transform: translateX(4px); }
/* ============ 使用场景 ============ */
.scenarios { background: var(--canvas); overflow: hidden; }
.scenario-scroll { display: flex; gap: 20px; overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none; padding-bottom: 8px; }
.scenario-scroll::-webkit-scrollbar { display: none; }
.scenario-card {
  flex-shrink: 0;
  width: 260px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  transition: all .3s ease;
}
.scenario-card:hover { background: rgba(124, 58, 237, .12); border-color: rgba(124, 58, 237, .35); transform: translateY(-4px); }
.scenario-icon { width: 46px; height: 46px; border-radius: 12px; background: rgba(45, 212, 191, .1); color: var(--teal); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.scenario-icon svg { width: 22px; height: 22px; }
.scenario-card h3 { font-size: 17px; font-weight: 600; color: var(--text-main); }
.scenario-card p { font-size: 13px; color: var(--text-secondary); margin-top: 8px; line-height: 1.7; }
/* ============ 成功案例 ============ */
.cases { background: var(--panel); }
.case-list { display: flex; flex-direction: column; gap: 18px; max-width: 920px; margin: 0 auto; }
.case-row {
  display: flex; align-items: center; gap: 24px;
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 16px;
  transition: all .3s ease;
}
.case-row:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: rgba(124, 58, 237, .4); }
.case-thumb { position: relative; width: 160px; height: 90px; border-radius: var(--radius-img); overflow: hidden; flex-shrink: 0; }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.case-row:hover .case-thumb img { transform: scale(1.06); }
.case-thumb .play-mini {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(.8);
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(124, 58, 237, .88);
  display: flex; align-items: center; justify-content: center;
  color: #fff; opacity: 0; transition: all .3s ease;
}
.case-row:hover .play-mini { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.case-thumb .play-mini svg { width: 14px; height: 14px; fill: #fff; margin-left: 1px; }
.case-info { flex: 1; min-width: 0; }
.case-info h3 { font-size: 17px; font-weight: 600; color: var(--text-main); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.case-info .tagline { font-size: 13px; color: var(--brand-light); margin-top: 4px; }
.case-data { text-align: right; flex-shrink: 0; }
.case-data .data-row { font-size: 14px; color: var(--text-secondary); display: flex; gap: 16px; justify-content: flex-end; flex-wrap: wrap; }
.case-data .data-row b { color: var(--teal); font-weight: 700; }
/* ============ 价格 ============ */
.pricing { background: var(--canvas); }
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; max-width: 1000px; margin: 0 auto; }
.price-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 38px 32px;
  display: flex; flex-direction: column;
  transition: all .3s ease;
}
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.price-card.featured { border-color: var(--brand); background: linear-gradient(160deg, var(--panel-light), var(--panel)); box-shadow: 0 18px 45px rgba(124, 58, 237, .25); transform: scale(1.03); }
.price-card.featured:hover { transform: scale(1.03) translateY(-4px); }
.badge-recommend {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--pink); color: #fff;
  font-size: 12px; font-weight: 700;
  padding: 4px 16px; border-radius: 999px;
  letter-spacing: .5px;
  white-space: nowrap;
}
.price-name { font-size: 16px; font-weight: 600; color: var(--text-secondary); }
.price-amount { margin-top: 14px; font-size: 42px; font-weight: 800; color: var(--text-main); line-height: 1.2; }
.price-amount small { font-size: 16px; font-weight: 500; color: var(--text-muted); }
.price-desc { font-size: 13px; color: var(--text-muted); margin-top: 6px; }
.price-features { margin: 24px 0 28px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.price-features li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.price-features li svg { width: 16px; height: 16px; color: var(--teal); flex-shrink: 0; margin-top: 3px; }
.price-card .btn-primary, .price-card .btn-secondary { width: 100%; justify-content: center; }
/* ============ 资讯 ============ */
.news { background: var(--panel); }
.news-layout { display: grid; grid-template-columns: 1.4fr .9fr; gap: 48px; }
.news-list li { padding: 18px 0; border-bottom: 1px solid var(--border); transition: padding-left .25s ease; }
.news-list li:hover { padding-left: 8px; }
.news-list .news-date { font-size: 12px; color: var(--text-muted); }
.news-list h3 { font-size: 16px; font-weight: 600; margin-top: 4px; }
.news-list h3 a { color: var(--text-main); }
.news-list h3 a:hover { color: var(--brand-light); }
.news-list .news-brief { font-size: 13px; color: var(--text-secondary); margin-top: 6px; line-height: 1.6; }
.news-hot { background: var(--canvas); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 28px; }
.news-hot h3 { font-size: 18px; font-weight: 700; color: var(--text-main); display: flex; align-items: center; gap: 8px; }
.news-hot h3 .hot-icon { color: var(--pink); }
.news-hot ol { margin-top: 20px; display: flex; flex-direction: column; gap: 16px; }
.news-hot li { display: flex; align-items: center; gap: 12px; }
.news-hot .rank { width: 24px; height: 24px; border-radius: 8px; background: rgba(124, 58, 237, .15); color: var(--brand-light); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.news-hot .rank.top { background: var(--pink); color: #fff; }
.news-hot .hot-info { flex: 1; min-width: 0; }
.news-hot .hot-name { font-size: 14px; color: var(--text-main); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-hot .hot-data { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
/* ============ 平台保障 ============ */
.guarantees { background: var(--canvas); border-top: 1px solid var(--border); }
.guarantee-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.guarantee-item { padding: 32px 20px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-card); transition: all .3s ease; }
.guarantee-item:hover { border-color: rgba(45, 212, 191, .35); transform: translateY(-4px); }
.guarantee-icon { width: 54px; height: 54px; margin: 0 auto 16px; background: rgba(45, 212, 191, .1); border-radius: 14px; color: var(--teal); display: flex; align-items: center; justify-content: center; }
.guarantee-icon svg { width: 26px; height: 26px; }
.guarantee-item h3 { font-size: 16px; font-weight: 600; color: var(--text-main); }
.guarantee-item p { font-size: 13px; color: var(--text-secondary); margin-top: 8px; line-height: 1.7; }
/* ============ FAQ ============ */
.faq { background: var(--panel); }
.faq-wrap { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--canvas); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; transition: border-color .3s ease; }
.faq-item.active { border-color: rgba(124, 58, 237, .45); }
.faq-q { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--text-main); transition: color .25s ease; }
.faq-q:hover { color: var(--brand-light); }
.faq-q .arrow { width: 28px; height: 28px; border-radius: 50%; background: rgba(124, 58, 237, .1); color: var(--brand-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: transform .3s ease; }
.faq-q .arrow svg { width: 14px; height: 14px; }
.faq-item.active .faq-q .arrow { transform: rotate(45deg); background: var(--brand); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item.active .faq-a { max-height: 300px; }
.faq-a-inner { padding: 0 24px 22px; font-size: 14px; color: var(--text-secondary); line-height: 1.8; border-top: 1px solid rgba(124, 58, 237, .2); margin: 0 24px 18px 24px; padding-top: 16px; }
/* ============ App 区域 ============ */
.app-section {
  position: relative;
  padding: 80px 0;
  background: url('/assets/images/backpic/back-3.jpg') center center / cover no-repeat;
}
.app-section::before { content: ''; position: absolute; inset: 0; background: rgba(21, 16, 29, .92); }
.app-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: center; }
.app-copy h2 { font-size: 30px; font-weight: 800; line-height: 1.35; }
.app-copy p { color: var(--text-secondary); margin-top: 14px; font-size: 15px; line-height: 1.8; }
.app-buttons { display: flex; gap: 16px; margin-top: 28px; flex-wrap: wrap; }
.app-btn { display: inline-flex; align-items: center; gap: 10px; background: var(--panel-light); border: 1px solid rgba(255, 255, 255, .15); border-radius: 14px; padding: 12px 20px; color: var(--text-main); transition: all .3s ease; }
.app-btn:hover { border-color: var(--brand); background: rgba(124, 58, 237, .15); transform: translateY(-2px); }
.app-btn svg { width: 24px; height: 24px; color: var(--brand-light); }
.app-btn .btn-label { font-size: 11px; color: var(--text-muted); }
.app-btn .btn-name { font-size: 15px; font-weight: 600; }
.app-qr { text-align: center; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 30px; max-width: 220px; margin-left: auto; }
.app-qr .qr-box { width: 130px; height: 130px; margin: 0 auto; background: linear-gradient(135deg, rgba(124, 58, 237, .2), rgba(45, 212, 191, .15)); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--text-muted); font-size: 13px; }
.app-qr p { font-size: 13px; color: var(--text-secondary); margin-top: 14px; }
/* ============ CTA ============ */
.cta-section { background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand) 55%, #6D28D9 100%); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; width: 400px; height: 400px; border-radius: 50%; background: rgba(255, 255, 255, .04); top: -120px; right: -80px; }
.cta-section::after { content: ''; position: absolute; width: 260px; height: 260px; border-radius: 50%; background: rgba(45, 212, 191, .08); bottom: -100px; left: -60px; }
.cta-inner { position: relative; z-index: 2; text-align: center; padding: 72px 0; }
.cta-inner h2 { font-size: 34px; font-weight: 800; color: #fff; line-height: 1.35; }
.cta-inner p { color: rgba(255, 255, 255, .7); margin-top: 14px; font-size: 16px; }
.cta-inner .btn-primary { background: #fff; color: var(--brand-dark); font-size: 16px; padding: 14px 40px; margin-top: 30px; }
.cta-inner .btn-primary:hover { background: #f0ecff; color: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0, 0, 0, .2); }
/* ============ 页脚 ============ */
.site-footer { background: #0D0A12; padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .logo { font-size: 20px; }
.footer-brand p { font-size: 13px; color: var(--text-muted); margin-top: 16px; line-height: 1.8; max-width: 280px; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: var(--text-main); margin-bottom: 18px; }
.footer-col a { display: block; font-size: 13px; color: var(--text-muted); padding: 5px 0; transition: all .25s ease; }
.footer-col a:hover { color: var(--brand-light); padding-left: 5px; }
.footer-col .tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.footer-col .tag-list a { display: inline-block; font-size: 12px; padding: 4px 12px; border: 1px solid rgba(255, 255, 255, .1); border-radius: 999px; }
.footer-col .tag-list a:hover { border-color: var(--brand); color: var(--brand-light); padding-left: 12px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .06); padding: 22px 0; text-align: center; font-size: 13px; color: var(--text-muted); }
/* ============ 回到顶部 ============ */
.back-top {
  position: fixed; bottom: 28px; right: 28px;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--brand); color: #fff;
  display: flex; align-items: center; justify-content: center;
  z-index: 999; opacity: 0; visibility: hidden;
  transform: translateY(12px);
  transition: all .35s ease;
  box-shadow: 0 8px 24px rgba(124, 58, 237, .35);
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--brand-light); transform: translateY(-2px); }
.back-top svg { width: 20px; height: 20px; }
/* ============ 响应式 ============ */
@media (max-width: 959px) {
  :root { --section-pad: 72px; }
  .entry-grid { grid-template-columns: repeat(2, 1fr); }
  .milestone-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .milestone-grid::before { display: none; }
  .value-layout { grid-template-columns: 1fr; gap: 40px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-grid .feature-card:first-child { grid-row: auto; }
  .price-grid { grid-template-columns: 1fr 1fr; }
  .price-card.featured { grid-column: span 2; transform: none; }
  .price-card.featured:hover { transform: translateY(-4px); }
  .news-layout { grid-template-columns: 1fr; gap: 40px; }
  .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
  .app-inner { grid-template-columns: 1fr; }
  .app-qr { margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  :root { --section-pad: 56px; }
  .menu-toggle { display: flex; }
  .nav-menu {
    position: fixed; top: 0; right: -100%;
    width: 280px; height: 100vh;
    background: rgba(21, 16, 29, .98);
    flex-direction: column; align-items: flex-start;
    padding: 80px 30px 30px;
    gap: 8px;
    transition: right .35s ease;
    z-index: 1001;
  }
  .nav-menu.open { right: 0; }
  .nav-menu a { font-size: 16px; padding: 10px 0; width: 100%; border-radius: 8px; }
  .header-cta .btn-primary { display: none; }
  .hero { padding: 120px 0 70px; min-height: auto; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 15px; }
  .hero-stats { gap: 20px; }
  .hero-stat .num { font-size: 22px; }
  .entry-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .price-grid { grid-template-columns: 1fr; }
  .price-card.featured { grid-column: auto; }
  .guarantee-grid { grid-template-columns: 1fr; }
  .case-row { flex-direction: column; align-items: flex-start; }
  .case-thumb { width: 100%; height: 160px; }
  .case-data { text-align: left; }
  .case-data .data-row { justify-content: flex-start; }
  .milestone-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .section-head h2 { font-size: 26px; }
  .value-left h2 { font-size: 25px; }
  .cta-inner h2 { font-size: 26px; }
  .app-section { padding: 56px 0; }
  .back-top { bottom: 18px; right: 18px; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .pill-item { padding: 6px 16px; font-size: 13px; }
  .price-amount { font-size: 34px; }
  .app-buttons { flex-direction: column; align-items: flex-start; }
}

/* roulang page: category1 */
:root {
  --brand: #7C3AED;
  --brand-light: #8B5CF6;
  --brand-dark: #5B21B6;
  --canvas: #15101D;
  --panel: #201A2B;
  --panel-light: #2A2238;
  --teal: #2DD4BF;
  --pink: #FF5C8A;
  --text-main: #F5F0FA;
  --text-secondary: #B9AEC9;
  --text-muted: #8A7E9C;
  --border: rgba(255,255,255,.08);
  --radius-card: 16px;
  --radius-img: 12px;
  --radius-btn: 999px;
  --shadow-card: 0 10px 30px rgba(0,0,0,.18);
  --shadow-hover: 0 18px 40px rgba(124,58,237,.18);
  --container: 1200px;
  --section-pad: 80px;
  --transition: .3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--canvas);color:var(--text-main);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--text-secondary);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--brand-light)}
a:focus-visible,button:focus-visible{outline:2px solid var(--brand-light);outline-offset:2px}
button{font-family:inherit;border:none;background:none;cursor:pointer}
input{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--section-pad) 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 48px}
.section-head .tag{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.5px;color:var(--teal);background:rgba(45,212,191,.1);padding:5px 14px;border-radius:999px;margin-bottom:14px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700}
.section-head p{color:var(--text-secondary);font-size:16px;margin-top:12px}

/* ============ 顶部导航 ============ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:14px 0;transition:background .3s ease,box-shadow .3s ease,padding .3s ease;background:rgba(21,16,29,.7);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(21,16,29,.88);border-bottom-color:rgba(255,255,255,.06);box-shadow:0 8px 30px rgba(0,0,0,.3);padding:10px 0}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--text-main);letter-spacing:.5px}
.logo .logo-icon{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));display:flex;align-items:center;justify-content:center;flex-shrink:0}
.logo .logo-icon svg{width:18px;height:18px;fill:#fff}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu a{padding:8px 16px;font-size:15px;font-weight:500;color:var(--text-secondary);border-radius:999px;transition:all .25s ease}
.nav-menu a:hover{color:var(--text-main);background:rgba(124,58,237,.12)}
.nav-menu a.active{color:#fff;background:var(--brand)}
.header-cta{display:flex;align-items:center;gap:12px}
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--brand);color:#fff;padding:10px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;transition:all .3s ease;border:1px solid transparent}
.btn-primary:hover{background:var(--brand-light);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(124,58,237,.35)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--text-main);border:1px solid rgba(255,255,255,.2);padding:10px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:500;transition:all .3s ease}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand-light);background:rgba(124,58,237,.08)}
.menu-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;border-radius:10px;border:1px solid rgba(255,255,255,.12);color:var(--text-main)}
.menu-toggle svg{width:22px;height:22px}

/* ============ 分类标题区 ============ */
.category-banner{position:relative;padding:160px 0 70px;background:linear-gradient(115deg,rgba(21,16,29,.97) 30%,rgba(32,26,43,.82) 70%,rgba(124,58,237,.45)),url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;border-bottom:1px solid rgba(255,255,255,.06)}
.category-banner::after{content:'';position:absolute;left:0;right:0;bottom:0;height:80px;background:linear-gradient(0deg,var(--canvas) 0%,transparent 100%);pointer-events:none}
.category-banner .container{position:relative;z-index:2}
.breadcrumb{margin-bottom:22px}
.breadcrumb ol{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.breadcrumb li{font-size:14px;color:var(--text-muted);display:flex;align-items:center;gap:6px}
.breadcrumb li:not(:last-child)::after{content:'/';color:var(--text-muted);margin:0 2px}
.breadcrumb a{color:var(--text-secondary);transition:color .25s ease}
.breadcrumb a:hover{color:var(--brand-light)}
.breadcrumb .current{color:var(--text-main);font-weight:500}
.category-banner h1{font-size:40px;line-height:1.25;font-weight:800;letter-spacing:.5px;max-width:760px}
.category-banner h1 .highlight{color:var(--brand-light)}
.banner-desc{margin-top:18px;font-size:16px;color:var(--text-secondary);line-height:1.8;max-width:680px}

/* ============ Pill 分类条 ============ */
.pill-bar{position:sticky;top:0;z-index:900;background:rgba(21,16,29,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);padding:16px 0}
.pill-scroll{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.pill-scroll::-webkit-scrollbar{display:none}
.pill-item{flex-shrink:0;display:inline-flex;align-items:center;gap:6px;padding:7px 20px;border-radius:999px;font-size:14px;font-weight:500;color:var(--text-secondary);border:1px solid rgba(255,255,255,.1);background:transparent;transition:all .25s ease}
.pill-item:hover{background:rgba(124,58,237,.12);color:var(--text-main);border-color:rgba(124,58,237,.4)}
.pill-item.active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 4px 16px rgba(124,58,237,.3)}

/* ============ 内容卡片网格 ============ */
.content-section{background:var(--canvas)}
.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.content-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(124,58,237,.45)}
.card-cover{position:relative;display:block;overflow:hidden;aspect-ratio:16/9;background:var(--panel-light)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.content-card:hover .card-cover img{transform:scale(1.05)}
.card-cover::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(21,16,29,.55));transition:opacity .3s ease;opacity:.6}
.content-card:hover .card-cover::after{opacity:.9}
.badge{position:absolute;top:12px;left:12px;z-index:3;display:inline-block;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;letter-spacing:.3px}
.badge-hot{background:var(--pink);color:#fff}
.badge-type{background:rgba(21,16,29,.75);color:var(--text-main);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.12)}
.play-icon{position:absolute;right:14px;bottom:14px;z-index:3;width:38px;height:38px;border-radius:50%;background:rgba(124,58,237,.9);display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(.8);transition:opacity .3s ease,transform .3s ease;box-shadow:0 4px 16px rgba(124,58,237,.4)}
.play-icon svg{width:15px;height:15px;fill:#fff}
.content-card:hover .play-icon{opacity:1;transform:scale(1)}
.card-body{padding:22px}
.card-body h3{font-size:18px;font-weight:700;line-height:1.4;margin-bottom:10px}
.card-body h3 a{color:var(--text-main);transition:color .25s ease}
.card-body h3 a:hover{color:var(--brand-light)}
.card-body p{font-size:14.5px;color:var(--text-secondary);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.card-meta{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-muted)}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-muted);display:inline-block}

/* ============ 分页 ============ */
.pagination-section{padding:20px 0 80px;background:var(--canvas)}
.pagination{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 14px;border-radius:10px;font-size:14px;font-weight:500;color:var(--text-secondary);border:1px solid var(--border);transition:all .25s ease;background:var(--panel)}
.pagination a:hover{border-color:var(--brand);color:var(--brand-light);background:rgba(124,58,237,.08)}
.pagination .active{background:var(--brand);color:#fff;border-color:var(--brand)}
.pagination .disabled{opacity:.4;pointer-events:none}
.load-more{display:none;width:100%;max-width:280px;margin:0 auto;justify-content:center;align-items:center;gap:8px;padding:13px 30px;border-radius:999px;background:var(--panel);border:1px solid rgba(255,255,255,.12);color:var(--text-main);font-size:15px;font-weight:600;transition:all .3s ease}
.load-more:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-2px)}

/* ============ 长尾文本区 ============ */
.longtail-section{background:linear-gradient(180deg,var(--canvas) 0%,var(--panel) 50%,var(--canvas) 100%);padding:80px 0}
.longtail-wrap{max-width:860px;margin:0 auto}
.longtail-wrap h2{font-size:30px;line-height:1.35;font-weight:800;margin-bottom:18px}
.longtail-wrap .lead{font-size:16px;color:var(--text-secondary);line-height:1.8;margin-bottom:32px}
.longtail-block{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-card);padding:30px;margin-bottom:22px;transition:border-color .3s ease}
.longtail-block:hover{border-color:rgba(124,58,237,.35)}
.longtail-block h3{font-size:20px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.longtail-block h3 .idx{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;background:rgba(124,58,237,.15);color:var(--brand-light);font-size:14px;font-weight:700;flex-shrink:0}
.longtail-block p{font-size:14.5px;color:var(--text-secondary);line-height:1.8}

/* ============ 相关推荐区 ============ */
.related-section{background:var(--canvas)}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.related-card{position:relative;display:block;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--border);background:var(--panel);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(124,58,237,.45)}
.related-card img{aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.related-card:hover img{transform:scale(1.05)}
.related-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(21,16,29,.9));display:flex;align-items:flex-end;padding:18px}
.related-overlay span{font-size:15px;font-weight:600;color:var(--text-main);line-height:1.5}
.related-overlay small{display:block;font-size:12.5px;color:var(--text-muted);margin-top:4px;font-weight:400}

/* ============ FAQ ============ */
.faq-section{background:var(--panel)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--panel-light);border:1px solid var(--border);border-radius:var(--radius-card);margin-bottom:14px;overflow:hidden;transition:border-color .3s ease}
.faq-item.active{border-color:rgba(124,58,237,.45)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--text-main);text-align:left;background:transparent;transition:background .25s ease}
.faq-q:hover{background:rgba(124,58,237,.06)}
.faq-q .arrow{width:24px;height:24px;border-radius:50%;border:1px solid rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform .3s ease,background .3s ease,border-color .3s ease}
.faq-item.active .arrow{transform:rotate(45deg);background:var(--brand);border-color:var(--brand)}
.faq-q .arrow svg{width:12px;height:12px;stroke:currentColor;stroke-width:2;color:var(--text-secondary)}
.faq-item.active .arrow svg{color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.active .faq-a{max-height:300px}
.faq-a-inner{padding:0 24px 20px;font-size:14.5px;color:var(--text-secondary);line-height:1.8;border-top:1px solid rgba(255,255,255,.06);padding-top:16px}

/* ============ CTA 条 ============ */
.cta-section{position:relative;padding:90px 0;background:linear-gradient(135deg,var(--brand-dark) 0%,var(--brand) 60%,var(--brand-light) 100%);overflow:hidden}
.cta-section::before{content:'';position:absolute;top:-60px;right:-40px;width:300px;height:300px;border-radius:50%;background:rgba(255,255,255,.06);pointer-events:none}
.cta-section::after{content:'';position:absolute;bottom:-80px;left:-60px;width:260px;height:260px;border-radius:50%;background:rgba(45,212,191,.1);pointer-events:none}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:640px;margin:0 auto}
.cta-inner .tag{display:inline-block;font-size:13px;font-weight:600;color:rgba(255,255,255,.8);background:rgba(255,255,255,.15);padding:5px 14px;border-radius:999px;margin-bottom:16px}
.cta-inner h2{font-size:34px;font-weight:800;line-height:1.35;color:#fff;margin-bottom:16px}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.85);line-height:1.75;margin-bottom:30px}
.cta-inner .btn-primary{background:#fff;color:var(--brand-dark);font-weight:700;padding:14px 38px;font-size:16px}
.cta-inner .btn-primary:hover{background:var(--text-main);color:var(--brand-dark);box-shadow:0 8px 30px rgba(0,0,0,.2)}

/* ============ 页脚 ============ */
.site-footer{background:#0F0B16;border-top:1px solid rgba(255,255,255,.05);padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-muted);line-height:1.8;max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text-main);margin-bottom:18px}
.footer-col>a{display:block;font-size:14px;color:var(--text-secondary);padding:6px 0;transition:color .25s ease}
.footer-col>a:hover{color:var(--brand-light)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag-list a{font-size:13px;color:var(--text-secondary);border:1px solid var(--border);border-radius:999px;padding:5px 14px;transition:all .25s ease}
.tag-list a:hover{color:var(--brand-light);border-color:rgba(124,58,237,.4);background:rgba(124,58,237,.06)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.05);padding:22px 0;text-align:center;font-size:13px;color:var(--text-muted)}

/* ============ 回到顶部 ============ */
.back-top{position:fixed;right:24px;bottom:30px;z-index:999;width:46px;height:46px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 20px rgba(124,58,237,.4);opacity:0;transform:translateY(15px);pointer-events:none;transition:all .3s ease}
.back-top.show{opacity:1;transform:translateY(0);pointer-events:auto}
.back-top:hover{background:var(--brand-light);transform:translateY(-3px)}
.back-top svg{width:18px;height:18px;stroke:currentColor;stroke-width:2.5;fill:none}

/* ============ 响应式 ============ */
@media (max-width:959px){
  .content-grid{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .category-banner h1{font-size:34px}
  .cta-inner h2{font-size:28px}
}
@media (max-width:767px){
  :root{--section-pad:56px}
  .menu-toggle{display:flex}
  .nav-menu{position:fixed;top:0;right:-100%;width:290px;height:100vh;background:var(--panel);flex-direction:column;align-items:flex-start;padding:90px 24px 30px;gap:6px;border-left:1px solid var(--border);transition:right .35s ease;box-shadow:-20px 0 50px rgba(0,0,0,.4);overflow-y:auto}
  .nav-menu.open{right:0}
  .nav-menu a{width:100%;padding:13px 18px;font-size:16px}
  .header-cta .btn-primary{display:none}
  .header-cta .btn-secondary{display:none}
  .category-banner{padding:130px 0 56px}
  .category-banner h1{font-size:29px}
  .banner-desc{font-size:15px}
  .content-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .pagination{display:none}
  .load-more{display:flex}
  .longtail-block{padding:24px}
  .longtail-wrap h2{font-size:25px}
  .faq-q{font-size:15px;padding:17px 18px}
  .faq-a-inner{padding:0 18px 18px}
  .cta-inner h2{font-size:25px}
  .cta-inner .btn-primary{padding:12px 30px}
  .logo{font-size:19px}
  .logo .logo-icon{width:34px;height:34px}
}
@media (max-width:520px){
  .category-banner h1{font-size:25px}
  .card-body p{font-size:14px}
  .longtail-block h3{font-size:18px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .back-top{right:14px;bottom:18px}
}