/* roulang page: index */
:root {
  --primary: #3B82F6;
  --accent: #22D3EE;
  --gold: #F5B301;
  --purple: #7C3AED;
  --bg-main: #0B1120;
  --bg-deep: #0B1B2B;
  --bg-dark: #060A14;
  --text-1: #F1F5FB;
  --text-2: #94A3B8;
  --text-3: #64748B;
  --border: rgba(255, 255, 255, 0.12);
  --glass: rgba(255, 255, 255, 0.06);
  --glass-hover: rgba(255, 255, 255, 0.10);
  --radius-btn: 12px;
  --radius-card: 16px;
  --radius-panel: 20px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, .25);
  --shadow-float: 0 16px 40px rgba(2, 6, 23, .45);
  --glow-blue: 0 0 24px rgba(59, 130, 246, .35);
  --glow-blue-hover: 0 0 32px rgba(59, 130, 246, .55);
  --glow-gold: 0 0 24px rgba(245, 179, 1, .3);
  --space-section: 96px;
  --space-section-mobile: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans CJK SC", sans-serif;
  background: var(--bg-main);
  color: var(--text-1);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s, opacity .25s;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

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

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

section, main {
  display: block;
}

/* ---------- 悬浮胶囊导航 ---------- */
.site-nav {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 48px);
  max-width: 1200px;
  z-index: 999;
  background: rgba(10, 15, 30, 0.60);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-pill);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
  transition: background .4s, box-shadow .4s;
}

.site-nav.scrolled {
  background: rgba(6, 10, 20, 0.85);
  box-shadow: var(--shadow-float);
}

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

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 0 18px rgba(34, 211, 238, .3);
}

.brand-text {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .5px;
  color: var(--text-1);
  white-space: nowrap;
}

.brand-text span {
  color: var(--accent);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-menu li a {
  display: block;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--radius-pill);
  letter-spacing: .5px;
  position: relative;
  transition: color .25s, background .25s;
}

.nav-menu li a:hover {
  color: var(--text-1);
  background: rgba(255, 255, 255, 0.05);
}

.nav-menu li a.active {
  color: var(--accent);
  background: rgba(34, 211, 238, 0.08);
}

.nav-menu li a.active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 3px;
  transform: translateX(-50%);
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(34, 211, 238, .6);
}

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

.btn-download-nav {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 22px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .5px;
  box-shadow: var(--glow-blue);
  transition: box-shadow .3s, transform .2s;
}

.btn-download-nav:hover {
  box-shadow: var(--glow-blue-hover);
  transform: translateY(-1px);
  color: #fff;
}

.nav-burger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-1);
  cursor: pointer;
  transition: background .25s;
}

.nav-burger:hover {
  background: rgba(255, 255, 255, 0.10);
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 998;
  background: rgba(6, 10, 20, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 100px 32px 40px;
  flex-direction: column;
  overflow-y: auto;
}

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

.mobile-drawer a {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-1);
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-drawer a.active {
  color: var(--accent);
}

.mobile-drawer .btn-download-nav {
  margin-top: 28px;
  justify-content: center;
}

/* ---------- Hero 主屏 ---------- */
.hero {
  position: relative;
  min-height: 760px;
  height: 100vh;
  max-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(11, 17, 32, .7), var(--bg-main));
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 1;
}

.hero::after {
  content: '';
  position: absolute;
  top: -100px;
  left: -100px;
  width: 420px;
  height: 420px;
  background: rgba(34, 211, 238, 0.18);
  filter: blur(200px);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

.hero-glow-gold {
  position: absolute;
  bottom: -120px;
  right: -80px;
  width: 380px;
  height: 380px;
  background: rgba(245, 179, 1, 0.10);
  filter: blur(180px);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.hero-left {
  flex: 1;
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(34, 211, 238, 0.3);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: .5px;
  margin-bottom: 20px;
  box-shadow: 0 0 18px rgba(34, 211, 238, .12);
}

.hero-badge i {
  font-size: 12px;
}

.hero h1 {
  font-size: 48px;
  line-height: 1.2;
  font-weight: 800;
  color: var(--text-1);
  margin: 0 0 20px;
  letter-spacing: 0;
}

.hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-2);
  margin-bottom: 32px;
  max-width: 460px;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius-btn);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .5px;
  box-shadow: var(--glow-blue);
  transition: box-shadow .3s, transform .2s;
}

.btn-primary:hover {
  box-shadow: var(--glow-blue-hover);
  transform: translateY(-2px);
  color: #fff;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 30px;
  border-radius: var(--radius-btn);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--text-1);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .5px;
  transition: background .3s, border-color .3s, transform .2s;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(34, 211, 238, 0.4);
  color: var(--accent);
  transform: translateY(-2px);
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-2);
}

.trust-item i {
  color: var(--gold);
  font-size: 15px;
}

.trust-item strong {
  color: var(--text-1);
  font-weight: 700;
  font-size: 15px;
}

.hero-right {
  flex-shrink: 0;
  width: 460px;
}

.terminal-panel {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-panel);
  padding: 32px 28px;
  position: relative;
  box-shadow: var(--shadow-float);
}

.terminal-dots {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}

.terminal-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}

.terminal-dots span:nth-child(1) {
  background: rgba(244, 63, 94, 0.7);
}

.terminal-dots span:nth-child(2) {
  background: rgba(245, 179, 1, 0.7);
}

.terminal-dots span:nth-child(3) {
  background: rgba(34, 211, 238, 0.7);
}

.terminal-body {
  text-align: center;
}

.app-icon-circle {
  width: 76px;
  height: 76px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: #fff;
  margin: 0 auto 16px;
  box-shadow: 0 0 28px rgba(59, 130, 246, .4);
}

.terminal-body h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 6px;
}

.terminal-ver {
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 12px;
}

.terminal-stars {
  color: var(--gold);
  font-size: 14px;
  margin-bottom: 24px;
}

.terminal-download {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.terminal-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 0;
  border-radius: var(--radius-btn);
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: var(--text-1);
  font-size: 14px;
  font-weight: 600;
  transition: background .3s, border-color .3s;
}

.terminal-btn:hover {
  background: rgba(59, 130, 246, 0.28);
  border-color: var(--accent);
}

.terminal-qr {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.qr-img {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  border: 1px solid var(--border);
  object-fit: cover;
  background: #fff;
}

.qr-text {
  font-size: 13px;
  color: var(--text-2);
  text-align: left;
  line-height: 1.6;
}

/* ---------- 价值块 2+1 ---------- */
.section {
  padding: var(--space-section) 0;
  position: relative;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 14px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.2);
}

.section h2 {
  font-size: 36px;
  line-height: 1.25;
  font-weight: 800;
  color: var(--text-1);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-2);
  max-width: 640px;
  margin-bottom: 48px;
  line-height: 1.8;
}

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

.section-head.center {
  text-align: center;
}

.section-head.center .section-label,
.section-head.center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

.value-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.value-wide {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  border-radius: var(--radius-panel);
  overflow: hidden;
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 48px 44px;
  min-height: 280px;
  box-shadow: var(--shadow-card);
}

.value-wide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6, 10, 20, 0.92) 20%, rgba(11, 17, 32, 0.65) 80%);
}

.value-wide > * {
  position: relative;
  z-index: 1;
}

.value-wide h3 {
  font-size: 28px;
  font-weight: 800;
  max-width: 320px;
  line-height: 1.35;
}

.value-wide p {
  font-size: 15px;
  color: var(--text-2);
  max-width: 420px;
  line-height: 1.85;
}

.value-half {
  border-radius: var(--radius-panel);
  padding: 32px 28px;
  min-height: 240px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.value-glass {
  background: var(--glass);
  border: 1px solid var(--border);
  transition: background .35s, transform .3s, box-shadow .3s;
}

.value-glass:hover {
  background: var(--glass-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-float);
}

.value-gold {
  background: linear-gradient(160deg, rgba(245, 179, 1, 0.10), rgba(11, 17, 32, 0.5));
  border: 1px solid rgba(245, 179, 1, 0.35);
}

.value-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(34, 211, 238, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--accent);
  margin-bottom: 20px;
}

.value-half h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.value-half p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
}

.value-stat {
  font-size: 40px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1.1;
  margin-top: 8px;
  text-shadow: 0 0 24px rgba(245, 179, 1, .28);
}

.value-stat-label {
  font-size: 13px;
  color: var(--text-3);
  margin-top: 6px;
}

/* ---------- 功能截图轮播 ---------- */
.carousel-section {
  background: var(--bg-deep);
  position: relative;
}

.carousel-section::before {
  content: '';
  position: absolute;
  top: 40%;
  left: -120px;
  width: 300px;
  height: 300px;
  background: rgba(59, 130, 246, 0.10);
  filter: blur(160px);
  border-radius: 50%;
  pointer-events: none;
}

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

.orbit {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
}

.orbit-wrapper {
  position: relative;
  border-radius: var(--radius-panel);
  overflow: hidden;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: var(--shadow-float);
}

.orbit-container {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  min-height: 480px;
}

.orbit-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity .4s ease, visibility .4s;
}

.orbit-slide.is-active {
  opacity: 1;
  visibility: visible;
  position: relative;
}

.orbit-slide-card {
  display: flex;
  min-height: 480px;
}

.orbit-shot {
  flex: 3;
  position: relative;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 28px;
}

.orbit-shot::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 70%, rgba(11, 17, 32, 0.7));
}

.browser-shell {
  width: 85%;
  margin-top: 22px;
  border-radius: 12px;
  background: rgba(11, 17, 32, 0.75);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  overflow: hidden;
  position: relative;
  z-index: 1;
  box-shadow: 0 12px 32px rgba(0, 0, 0, .4);
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.browser-bar span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}

.browser-bar .url-bar {
  flex: 1;
  height: 24px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.orbit-info {
  flex: 2;
  padding: 44px 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: rgba(11, 17, 32, 0.6);
}

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

.orbit-info > p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.85;
  margin-bottom: 22px;
}

.orbit-points {
  list-style: none;
  padding: 0;
  margin: 0;
}

.orbit-points li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-2);
  padding: 6px 0;
}

.orbit-points li i {
  color: var(--accent);
  font-size: 12px;
}

.orbit-controls {
  position: absolute;
  top: 50%;
  left: -60px;
  right: -60px;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  pointer-events: none;
  z-index: 5;
}

.orbit-controls button {
  pointer-events: auto;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(11, 17, 32, 0.85);
  border: 1px solid rgba(34, 211, 238, 0.3);
  color: var(--accent);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--glow-blue);
  transition: box-shadow .3s, transform .2s;
}

.orbit-controls button:hover {
  box-shadow: var(--glow-blue-hover);
  transform: scale(1.06);
}

.orbit-bullets {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 24px;
}

.orbit-bullets button {
  width: 28px;
  height: 4px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.15);
  cursor: pointer;
  transition: all .3s;
  border: none;
  padding: 0;
}

.orbit-bullets button.is-active {
  background: var(--accent);
  width: 34px;
  box-shadow: 0 0 10px rgba(34, 211, 238, .3);
}

/* ---------- 系统要求 ---------- */
.spec-section {
  background: var(--bg-dark);
  position: relative;
}

.spec-table {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.spec-col {
  border-radius: var(--radius-panel);
  overflow: hidden;
  background: var(--glass);
  border: 1px solid var(--border);
  transition: transform .3s, box-shadow .3s;
}

.spec-col:hover {
  transform: translateY(-4px);
}

.spec-col.hot {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(34, 211, 238, 0.4);
  box-shadow: 0 0 28px rgba(34, 211, 238, 0.15);
}

.spec-col.pro {
  border-color: rgba(245, 179, 1, 0.35);
}

.spec-head {
  text-align: center;
  padding: 26px 20px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.spec-pill {
  display: inline-block;
  padding: 5px 18px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-2);
  letter-spacing: 1px;
}

.spec-col.hot .spec-pill {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: var(--glow-blue);
}

.spec-col.pro .spec-pill {
  background: rgba(245, 179, 1, 0.18);
  color: var(--gold);
  box-shadow: var(--glow-gold);
}

.spec-body {
  padding: 24px 26px;
}

.spec-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.spec-row:last-child {
  border-bottom: none;
}

.spec-row i {
  color: var(--accent);
  font-size: 14px;
  margin-top: 4px;
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}

.spec-row.pro-row i {
  color: var(--gold);
}

.spec-row .spec-label {
  font-size: 13px;
  color: var(--text-3);
  display: block;
}

.spec-row .spec-value {
  font-size: 14px;
  color: var(--text-1);
  font-weight: 600;
  line-height: 1.5;
}

.spec-check-wrapper {
  text-align: center;
  margin-top: 36px;
}

/* ---------- 评价墙 ---------- */
.reviews-section {
  background: var(--bg-main);
}

.reviews-summary {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-bottom: 48px;
  padding: 32px 40px;
  border-radius: var(--radius-panel);
  background: var(--glass);
  border: 1px solid var(--border);
  flex-wrap: wrap;
}

.review-score {
  display: flex;
  align-items: center;
  gap: 20px;
}

.review-score .big {
  font-size: 52px;
  font-weight: 800;
  line-height: 1;
  color: var(--text-1);
}

.review-score .stars {
  color: var(--gold);
  font-size: 18px;
  letter-spacing: 2px;
}

.review-score .count {
  font-size: 13px;
  color: var(--text-3);
  margin-top: 5px;
}

.review-metrics {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.metric-item {
  text-align: center;
}

.metric-item .num {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-1);
}

.metric-item .label {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 4px;
}

.reviews-grid {
  column-count: 2;
  column-gap: 24px;
}

.review-card {
  break-inside: avoid;
  margin-bottom: 24px;
  padding: 24px;
  border-radius: var(--radius-card);
  background: var(--glass);
  border: 1px solid var(--border);
  transition: transform .3s, box-shadow .3s;
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(34, 211, 238, 0.12);
}

.review-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.review-avatar.gold {
  background: linear-gradient(135deg, var(--gold), #f97316);
}

.review-avatar.purple {
  background: linear-gradient(135deg, var(--purple), var(--accent));
}

.review-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-1);
}

.review-stars {
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 1px;
  margin-top: 2px;
}

.review-platform {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-3);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 4px 10px;
  flex-shrink: 0;
}

.review-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-2);
  margin-bottom: 12px;
}

.review-meta {
  font-size: 12px;
  color: var(--text-3);
}

/* ---------- 下载按钮组 ---------- */
.download-section {
  background: linear-gradient(180deg, var(--bg-main), var(--bg-deep));
  text-align: center;
}

.download-tip {
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 20px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.download-tip i {
  color: var(--gold);
}

.download-btns {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  max-width: 820px;
  margin: 0 auto 24px;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 30px;
  border-radius: var(--radius-btn);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 0 28px rgba(59, 130, 246, 0.3);
  transition: box-shadow .3s, transform .2s;
  min-width: 190px;
  justify-content: center;
}

.download-btn:hover {
  box-shadow: 0 0 36px rgba(59, 130, 246, 0.5);
  transform: translateY(-2px);
  color: #fff;
}

.download-btn:active {
  transform: translateY(1px);
}

.download-btn i {
  font-size: 24px;
}

.download-btn .d-main {
  font-size: 16px;
  font-weight: 700;
  display: block;
  line-height: 1.3;
}

.download-btn .d-sub {
  font-size: 12px;
  opacity: 0.85;
  display: block;
  line-height: 1.3;
}

.download-btn.dark {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  box-shadow: none;
}

.download-btn.dark:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(34, 211, 238, 0.3);
  box-shadow: var(--glow-blue);
}

.download-security {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.security-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

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

.download-version {
  margin-top: 18px;
  font-size: 12px;
  color: var(--text-3);
}

/* ---------- 最新资讯 ---------- */
.news-section {
  background: var(--bg-dark);
}

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

.news-card {
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--glass);
  border: 1px solid var(--border);
  transition: transform .3s, box-shadow .3s;
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-float);
}

.news-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(34, 211, 238, 0.08));
}

.news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

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

.news-cover .cover-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: rgba(255, 255, 255, 0.2);
}

.news-cat {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  background: rgba(6, 10, 20, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(34, 211, 238, 0.25);
  color: var(--accent);
}

.news-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
}

.news-body h3 a {
  color: var(--text-1);
}

.news-body h3 a:hover {
  color: var(--accent);
}

.news-body p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
  flex: 1;
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-3);
}

.news-meta a {
  color: var(--accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 70px 20px;
  border-radius: var(--radius-card);
  background: var(--glass);
  border: 1px dashed var(--border);
}

.news-empty i {
  font-size: 38px;
  color: rgba(255, 255, 255, 0.18);
  margin-bottom: 14px;
}

.news-empty p {
  font-size: 15px;
  color: var(--text-2);
}

/* ---------- FAQ ---------- */
.faq-section {
  background: var(--bg-main);
}

.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.accordion {
  list-style: none;
  margin: 0;
  padding: 0;
}

.accordion-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  padding: 20px 0;
}

.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  cursor: pointer;
  transition: color .25s;
  padding: 8px 0;
}

.accordion-title:hover {
  color: var(--accent);
}

.accordion-title .acc-icon {
  font-size: 20px;
  color: var(--text-3);
  transition: transform .35s, color .3s;
  font-weight: 400;
}

.accordion-item.is-active .accordion-title {
  color: var(--accent);
}

.accordion-item.is-active .accordion-title .acc-icon {
  transform: rotate(45deg);
  color: var(--accent);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height .45s ease, padding .3s;
}

.accordion-item.is-active .accordion-content {
  max-height: 800px;
}

.accordion-content .acc-inner {
  padding: 12px 22px;
  background: var(--glass);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  margin-top: 10px;
}

.accordion-content p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-2);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: #05080F;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 64px;
}

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

.footer-brand .brand-logo {
  margin-bottom: 14px;
}

.footer-brand .brand-text {
  font-size: 18px;
  margin-bottom: 12px;
  display: inline-block;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.8;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 1px;
  margin-bottom: 18px;
}

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

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

.footer-col ul a {
  font-size: 14px;
  color: var(--text-2);
  transition: color .25s, padding-left .25s;
}

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

.footer-newsletter p {
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 14px;
  line-height: 1.7;
}

.footer-newsletter form {
  display: flex;
  gap: 8px;
}

.footer-newsletter input {
  flex: 1;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  padding: 0 14px;
  font-size: 14px;
  color: var(--text-1);
  transition: border-color .3s, box-shadow .3s;
}

.footer-newsletter input::placeholder {
  color: var(--text-3);
}

.footer-newsletter input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.2);
}

.footer-newsletter button {
  padding: 0 20px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: box-shadow .3s, transform .2s;
}

.footer-newsletter button:hover {
  box-shadow: var(--glow-blue);
  transform: translateY(-1px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-3);
}

.footer-security {
  display: flex;
  gap: 16px;
  align-items: center;
}

.footer-security span {
  font-size: 12px;
  color: var(--text-3);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 1023.98px) {
  .site-nav {
    width: calc(100% - 32px);
  }

  .nav-menu {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .nav-burger {
    display: flex;
  }

  .hero {
    min-height: auto;
    height: auto;
    padding: 120px 0 80px;
  }

  .hero .container {
    flex-direction: column;
    gap: 48px;
  }

  .hero-left {
    max-width: 100%;
  }

  .hero-right {
    width: 100%;
    max-width: 460px;
  }

  .value-wide {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .orbit-controls {
    left: -20px;
    right: -20px;
  }

  .orbit-slide-card {
    flex-direction: column;
  }

  .orbit-shot {
    flex: none;
    min-height: 240px;
  }

  .orbit-info {
    flex: none;
    padding: 32px;
  }

  .spec-table {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin: 48px auto 0;
  }

  .reviews-grid {
    column-count: 1;
  }

  .download-btns {
    flex-direction: column;
    align-items: center;
  }

  .download-btn {
    width: 100%;
    max-width: 320px;
  }

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

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

@media (max-width: 639.98px) {
  :root {
    --space-section: var(--space-section-mobile);
  }

  .container {
    padding: 0 16px;
  }

  .site-nav {
    top: 12px;
    padding: 8px 14px;
  }

  .brand-text {
    font-size: 15px;
  }

  .brand-logo {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }

  .hero h1 {
    font-size: 34px;
  }

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

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

  .btn-primary,
  .btn-secondary {
    justify-content: center;
  }

  .hero-trust {
    gap: 14px;
  }

  .section h2 {
    font-size: 26px;
  }

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

  .value-wide {
    grid-column: auto;
    padding: 32px 24px;
  }

  .value-wide h3 {
    font-size: 22px;
  }

  .orbit-controls {
    position: static;
    justify-content: center;
    gap: 20px;
    margin-top: 16px;
    transform: none;
  }

  .orbit-container {
    min-height: auto;
  }

  .orbit-slide-card {
    min-height: auto;
  }

  .orbit-shot {
    min-height: 180px;
    padding: 16px;
  }

  .browser-shell {
    width: 95%;
  }

  .orbit-info {
    padding: 24px 20px;
  }

  .reviews-summary {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
  }

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

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

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

  .footer-newsletter button {
    height: 44px;
  }

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

  .spec-check-wrapper {
    margin-top: 24px;
  }
}

@media (max-width: 1023.98px) and (min-width: 640px) {
  .download-btns {
    gap: 14px;
  }

  .download-btn {
    min-width: 160px;
    padding: 14px 18px;
    flex-direction: column;
    gap: 6px;
    text-align: center;
  }
}

/* roulang page: article */
:root {
  --bg-main: #0B1120;
  --bg-deep: #0B1B2B;
  --bg-black: #060A14;
  --blue: #3B82F6;
  --cyan: #22D3EE;
  --gold: #F5B301;
  --purple: #7C3AED;
  --text-1: #F1F5FB;
  --text-2: #94A3B8;
  --text-3: #64748B;
  --border: rgba(255,255,255,0.12);
  --glass: rgba(255,255,255,0.06);
  --glass-hover: rgba(255,255,255,0.10);
  --radius-btn: 12px;
  --radius-card: 16px;
  --radius-panel: 20px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,.25);
  --shadow-glass: 0 16px 40px rgba(2,6,23,.45);
  --glow-blue: 0 0 24px rgba(59,130,246,.35);
  --glow-cyan: 0 0 24px rgba(34,211,238,.35);
  --spacing-section: 96px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans CJK SC", sans-serif;
  background: var(--bg-main);
  color: var(--text-1);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
input, button, textarea { font-family: inherit; }
.container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.site-nav {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 1200px;
  max-width: calc(100% - 32px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 10px 20px;
  background: rgba(10, 15, 30, 0.6);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  z-index: 1000;
  transition: background .3s, box-shadow .3s;
}
.site-nav.scrolled {
  background: rgba(6, 10, 20, 0.85);
  box-shadow: 0 8px 32px rgba(2,6,23,.5);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, #3B82F6, #22D3EE);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
  box-shadow: 0 0 16px rgba(59,130,246,.4);
}
.brand-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-1);
  white-space: nowrap;
  letter-spacing: .5px;
}
.brand-text span { color: var(--cyan); }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-menu li { margin: 0; }
.nav-menu a {
  display: block;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  transition: color .2s, background .2s;
  letter-spacing: .5px;
}
.nav-menu a:hover { color: var(--text-1); background: rgba(255,255,255,0.06); }
.nav-menu a.active { color: var(--cyan); background: rgba(34,211,238,0.1); box-shadow: inset 0 0 0 1px rgba(34,211,238,0.2); }
.nav-cta { margin-left: 8px; flex-shrink: 0; }
.btn-download-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, #3B82F6, #22D3EE);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 0 20px rgba(59,130,246,.35);
  transition: box-shadow .2s, transform .2s;
  white-space: nowrap;
}
.btn-download-nav:hover { box-shadow: 0 0 32px rgba(59,130,246,.55); transform: translateY(-1px); }
.nav-burger {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text-1);
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
}

/* ===== 面包屑 ===== */
.breadcrumb-caps {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 20px;
}
.breadcrumb-caps a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 999px;
  color: var(--text-2);
  transition: all .2s;
}
.breadcrumb-caps a:hover { color: var(--cyan); border-color: rgba(34,211,238,.4); }
.breadcrumb-caps .sep { opacity: .5; padding: 0 2px; }
.breadcrumb-caps .current { color: var(--text-2); padding: 5px 14px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06); border-radius: 999px; max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== 文章头部 ===== */
.article-header {
  padding: 130px 0 0;
  background: var(--bg-main);
  position: relative;
}
.article-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 400px;
  background: radial-gradient(ellipse at 20% 0%, rgba(59,130,246,.12), transparent 60%),
              radial-gradient(ellipse at 80% 100%, rgba(245,179,1,.05), transparent 50%);
  pointer-events: none;
}
.article-header .container { position: relative; z-index: 1; }
.article-cat {
  display: inline-block;
  padding: 5px 16px;
  background: linear-gradient(135deg, rgba(59,130,246,.2), rgba(34,211,238,.2));
  border: 1px solid rgba(34,211,238,.3);
  border-radius: 999px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 18px;
}
.article-title {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-1);
  margin-bottom: 20px;
  letter-spacing: .5px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--text-3);
  font-size: 14px;
  margin-bottom: 36px;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.article-meta i { color: var(--blue); font-size: 14px; }
.article-cover-wrap { position: relative; z-index: 1; padding: 0 0 48px; }
.article-cover {
  max-width: 980px;
  margin: 0 auto;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(2,6,23,.5);
}
.article-cover img { width: 100%; height: 440px; object-fit: cover; display: block; }

/* ===== 正文 ===== */
.article-body {
  padding: 56px 0 40px;
  background: var(--bg-main);
}
.article-content {
  max-width: 760px;
  margin: 0 auto;
}
.article-content > *:first-child { margin-top: 0 !important; }
.article-content p {
  font-size: 16px;
  line-height: 2.0;
  color: #cbd5e1;
  margin-bottom: 28px;
}
.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-1);
  border-left: 4px solid var(--cyan);
  padding-left: 16px;
  margin: 44px 0 18px;
  line-height: 1.4;
}
.article-content h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-1);
  margin: 32px 0 12px;
}
.article-content h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-1);
  margin: 24px 0 10px;
}
.article-content a { color: var(--cyan); text-decoration: underline; text-underline-offset: 4px; }
.article-content a:hover { color: #7dd3fc; }
.article-content strong { color: var(--text-1); font-weight: 600; }
.article-content blockquote {
  border-left: 3px solid var(--gold);
  background: rgba(245,179,1,.06);
  padding: 18px 24px;
  margin: 28px 0;
  border-radius: 0 12px 12px 0;
  color: var(--text-2);
  font-style: italic;
  line-height: 1.8;
}
.article-content code {
  background: rgba(59,130,246,.15);
  color: var(--cyan);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}
.article-content pre {
  background: var(--bg-black);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
  margin: 28px 0;
  line-height: 1.7;
}
.article-content pre code { background: none; color: #e2e8f0; padding: 0; font-size: 14px; }
.article-content ul,
.article-content ol {
  margin: 0 0 28px;
  padding-left: 24px;
  color: #cbd5e1;
}
.article-content ul li { margin-bottom: 8px; position: relative; }
.article-content ul li::marker { color: var(--cyan); }
.article-content ol li { margin-bottom: 8px; }
.article-content ol li::marker { color: var(--gold); font-weight: 600; }
.article-content img {
  max-width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border);
  margin: 28px auto;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 14px;
  display: block;
  overflow-x: auto;
  white-space: nowrap;
}
.article-content thead { background: rgba(59,130,246,.1); }
.article-content th {
  color: var(--text-1);
  font-weight: 600;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.article-content td {
  color: var(--text-2);
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.article-content tr:last-child td { border-bottom: none; }
.article-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 36px 0;
}

/* ===== 标签区 ===== */
.article-tags {
  padding: 8px 0 48px;
  background: var(--bg-main);
}
.article-tags .container { max-width: 760px; }
.tags-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.tags-line .tags-label {
  font-size: 14px;
  color: var(--text-3);
  margin-right: 4px;
}
.tags-line a {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-2);
  font-size: 13px;
  transition: all .2s;
}
.tags-line a:hover { color: var(--cyan); border-color: rgba(34,211,238,.4); background: rgba(34,211,238,.06); }

/* ===== 相关推荐 ===== */
.related-posts {
  padding: 64px 0;
  background: var(--bg-deep);
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.related-posts .container { max-width: 1200px; }
.related-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 10px;
}
.related-sub {
  text-align: center;
  color: var(--text-3);
  font-size: 14px;
  margin-bottom: 36px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: block;
  border-radius: 16px;
  overflow: hidden;
  background: var(--glass);
  border: 1px solid var(--border);
  transition: transform .3s, box-shadow .3s, background .3s;
  height: 100%;
}
.related-card:hover {
  transform: translateY(-4px);
  background: var(--glass-hover);
  box-shadow: 0 16px 40px rgba(2,6,23,.45);
}
.related-cover { overflow: hidden; aspect-ratio: 16/9; background: linear-gradient(135deg, #0f172a, #1e293b); }
.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.related-card:hover .related-cover img { transform: scale(1.04); }
.related-info { padding: 20px; }
.related-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--cyan);
  background: rgba(34,211,238,.1);
  border: 1px solid rgba(34,211,238,.2);
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: .5px;
  margin-bottom: 10px;
}
.related-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 8px;
  line-height: 1.4;
}
.related-info p {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-3);
  font-size: 12px;
}
.related-meta i { color: var(--blue); font-size: 12px; }

/* ===== 返回入口 ===== */
.article-back {
  padding: 48px 0 96px;
  background: var(--bg-deep);
  text-align: center;
}
.article-back-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-glass {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 30px;
  border-radius: 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text-1);
  font-size: 14px;
  font-weight: 600;
  transition: all .3s;
}
.btn-glass:hover {
  background: rgba(255,255,255,0.10);
  border-color: rgba(34,211,238,.4);
  color: var(--cyan);
  box-shadow: 0 0 20px rgba(34,211,238,.2);
}
.btn-glass:active { transform: translateY(1px); }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 0 24px rgba(59,130,246,.35);
  transition: all .3s;
  border: none;
  cursor: pointer;
}
.btn-primary:hover { box-shadow: 0 0 36px rgba(59,130,246,.55); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); }

/* ===== 未找到 ===== */
.article-notfound {
  padding: 170px 0 120px;
  background: var(--bg-main);
  text-align: center;
  min-height: 70vh;
  position: relative;
}
.article-notfound .container { max-width: 560px; position: relative; z-index: 1; }
.notfound-icon {
  width: 76px;
  height: 76px;
  margin: 0 auto 28px;
  border-radius: 50%;
  background: rgba(244,63,94,.1);
  border: 1px solid rgba(244,63,94,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: #F43F5E;
}
.article-notfound h1 { font-size: 30px; color: var(--text-1); margin-bottom: 12px; font-weight: 700; }
.article-notfound p { color: var(--text-2); margin-bottom: 36px; font-size: 15px; }

/* ===== 页脚 ===== */
.site-footer {
  background: #05080F;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 64px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-brand .brand-logo { width: 44px; height: 44px; font-size: 20px; border-radius: 14px; margin-bottom: 16px; }
.footer-brand .brand-text { font-size: 20px; margin-bottom: 12px; display: inline-block; }
.footer-brand p { font-size: 14px; color: var(--text-3); line-height: 1.7; max-width: 360px; }
.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 1px;
  margin-bottom: 18px;
  text-transform: uppercase;
}
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  font-size: 14px;
  color: var(--text-2);
  transition: color .2s, padding-left .2s;
}
.footer-col a:hover { color: var(--cyan); padding-left: 4px; }
.footer-newsletter h4 { font-size: 14px; font-weight: 600; color: var(--text-1); margin-bottom: 12px; }
.footer-newsletter p { font-size: 13px; color: var(--text-3); margin-bottom: 16px; }
.footer-newsletter form {
  display: flex;
  gap: 8px;
}
.footer-newsletter input {
  flex: 1;
  height: 44px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  color: var(--text-1);
  padding: 0 14px;
  font-size: 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.footer-newsletter input:focus { border-color: var(--cyan); box-shadow: 0 0 16px rgba(34,211,238,.2); }
.footer-newsletter input::placeholder { color: var(--text-3); }
.footer-newsletter button {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  transition: box-shadow .2s, transform .2s;
  flex-shrink: 0;
}
.footer-newsletter button:hover { box-shadow: 0 0 20px rgba(59,130,246,.4); transform: translateY(-1px); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 24px 0;
}
.footer-bottom p { font-size: 13px; color: var(--text-3); }
.footer-security {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-security span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-3);
}
.footer-security i { color: var(--gold); }

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .site-nav {
    top: 12px;
    padding: 8px 16px;
    gap: 12px;
  }
  .brand-text { font-size: 16px; }
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(6,10,20,0.96);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 90px 30px 30px;
    transition: right .35s ease;
    z-index: 999;
    border-left: 1px solid var(--border);
  }
  .nav-menu.open { right: 0; }
  .nav-menu a { font-size: 16px; padding: 12px 20px; width: 100%; border-radius: 12px; }
  .nav-burger { display: flex; }
  .nav-cta { display: none; }
  .article-title { font-size: 30px; }
  .article-cover img { height: 320px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 639px) {
  .container { padding: 0 16px; }
  .site-nav { border-radius: 18px; }
  .article-header { padding-top: 110px; }
  .article-title { font-size: 24px; line-height: 1.35; }
  .article-meta { gap: 12px; font-size: 13px; }
  .article-cover img { height: 220px; }
  .article-body { padding-top: 32px; }
  .article-content p { font-size: 15px; }
  .article-content h2 { font-size: 22px; }
  .related-grid { grid-template-columns: 1fr; }
  .related-posts { padding: 48px 0; }
  .related-title { font-size: 24px; }
  .article-back { padding: 32px 0 64px; }
  .article-back-links { flex-direction: column; align-items: center; }
  .btn-glass { width: 100%; justify-content: center; max-width: 320px; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; padding-bottom: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-security { justify-content: center; }
  .breadcrumb-caps .current { max-width: 180px; }
}

/* roulang page: category1 */
:root {
            --bg-primary: #0B1120;
            --bg-secondary: #0B1B2B;
            --bg-dark: #060A14;
            --brand-blue: #3B82F6;
            --brand-cyan: #22D3EE;
            --brand-gold: #F5B301;
            --brand-purple: #7C3AED;
            --text-primary: #F1F5FB;
            --text-secondary: #94A3B8;
            --text-tertiary: #64748B;
            --border-glass: rgba(255, 255, 255, 0.12);
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-bg-hover: rgba(255, 255, 255, 0.10);
            --radius-btn: 12px;
            --radius-card: 16px;
            --radius-panel: 20px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, .25);
            --shadow-float: 0 16px 40px rgba(2, 6, 23, .45);
            --glow-blue: 0 0 24px rgba(59, 130, 246, .35);
            --glow-cyan: 0 0 24px rgba(34, 211, 238, .30);
            --glow-gold: 0 0 24px rgba(245, 179, 1, .30);
            --gradient-cta: linear-gradient(135deg, #3B82F6, #22D3EE);
            --space-section: 96px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans CJK SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background: var(--bg-primary);
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: inline-block;
            vertical-align: middle;
        }

        a {
            color: var(--brand-cyan);
            text-decoration: none;
            transition: color .3s ease;
        }

        a:hover {
            color: #ffffff;
        }

        ul,
        ol {
            padding: 0;
            margin: 0;
            list-style: none;
        }

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

        .section-block {
            padding: var(--space-section) 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--brand-cyan);
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.2);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            margin-bottom: 16px;
        }

        .section-label i {
            font-size: 12px;
        }

        .section-title {
            font-size: 36px;
            line-height: 1.25;
            font-weight: 800;
            margin: 0 0 16px;
            color: var(--text-primary);
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 40px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .3s ease;
        }

        .btn-primary {
            background: var(--gradient-cta);
            color: #fff;
            box-shadow: var(--glow-blue);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(59, 130, 246, .55);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 18px rgba(59, 130, 246, .4);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--border-glass);
            color: var(--text-primary);
            backdrop-filter: blur(8px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(255, 255, 255, 0.25);
            color: #fff;
            transform: translateY(-2px);
        }

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

        .btn-sm {
            padding: 10px 18px;
            font-size: 13px;
            border-radius: 10px;
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: fixed;
            top: 18px;
            left: 50%;
            transform: translateX(-50%);
            width: 1200px;
            max-width: calc(100% - 32px);
            z-index: 1000;
            background: rgba(10, 15, 30, 0.6);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-pill);
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .site-nav.scrolled {
            background: rgba(6, 10, 20, 0.85);
            box-shadow: 0 12px 32px rgba(0, 0, 0, .45);
            border-color: rgba(255, 255, 255, 0.18);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            color: var(--text-primary);
        }

        .brand-logo {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-blue), var(--brand-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 0 16px rgba(59, 130, 246, .4);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .brand-text span {
            color: var(--brand-cyan);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu li a {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            letter-spacing: .5px;
            transition: color .3s, background .3s;
        }

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

        .nav-menu li a.active {
            color: var(--brand-cyan);
            background: rgba(34, 211, 238, 0.08);
            box-shadow: inset 0 -2px 0 var(--brand-cyan);
        }

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

        .btn-download-nav {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            background: var(--gradient-cta);
            border-radius: var(--radius-pill);
            padding: 10px 20px;
            box-shadow: var(--glow-blue);
            transition: all .3s ease;
            line-height: 1;
        }

        .btn-download-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(59, 130, 246, .55);
            color: #fff;
        }

        .nav-burger {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: background .3s, border-color .3s;
        }

        .nav-burger:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(255, 255, 255, 0.25);
        }

        /* ===== 分类页 Hero ===== */
        .cat-hero {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            padding: 160px 0 80px;
            background-image: linear-gradient(180deg, rgba(11, 17, 32, 0.78), rgba(11, 17, 32, 0.94)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -60px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(34, 211, 238, .15), transparent 70%);
            pointer-events: none;
        }

        .cat-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(245, 179, 1, .12), transparent 70%);
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--brand-cyan);
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.25);
            border-radius: var(--radius-pill);
            padding: 8px 18px;
            margin-bottom: 24px;
            text-transform: uppercase;
        }

        .hero-badge i {
            font-size: 13px;
        }

        .cat-hero h1 {
            font-size: 48px;
            line-height: 1.2;
            font-weight: 800;
            margin: 0 0 20px;
            color: var(--text-primary);
            letter-spacing: .5px;
        }

        .cat-hero h1 span {
            color: var(--brand-cyan);
        }

        .hero-sub {
            font-size: 18px;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 0 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: center;
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-secondary);
        }

        .hero-trust span i {
            color: var(--brand-gold);
        }

        .hero-panel {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            border-radius: 20px;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 28px 24px;
            box-shadow: var(--shadow-float);
            position: relative;
            overflow: hidden;
        }

        .hero-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(34, 211, 238, .5), transparent);
        }

        .panel-dots {
            display: flex;
            gap: 8px;
            margin-bottom: 20px;
        }

        .panel-dots span {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.18);
        }

        .panel-dots span:first-child {
            background: rgba(244, 63, 94, .6);
        }

        .panel-dots span:last-child {
            background: rgba(34, 211, 238, .6);
        }

        .panel-app {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 14px;
        }

        .panel-app-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--brand-blue), var(--brand-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: #fff;
            box-shadow: 0 0 18px rgba(59, 130, 246, .4);
            flex-shrink: 0;
        }

        .panel-app-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .panel-app-meta {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 2px;
        }

        .panel-rating {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 18px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .panel-rating .stars {
            color: var(--brand-gold);
            font-size: 14px;
            letter-spacing: 2px;
        }

        .panel-downloads {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
        }

        .panel-downloads a {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 6px;
            border-radius: 10px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-glass);
            transition: all .3s;
        }

        .panel-downloads a:hover {
            background: rgba(34, 211, 238, 0.12);
            border-color: rgba(34, 211, 238, 0.4);
            color: var(--brand-cyan);
            transform: translateY(-2px);
        }

        .panel-qr {
            display: flex;
            align-items: center;
            gap: 14px;
            background: rgba(0, 0, 0, 0.2);
            border-radius: 12px;
            padding: 12px;
        }

        .panel-qr img {
            width: 64px;
            height: 64px;
            border-radius: 8px;
            object-fit: cover;
        }

        .panel-qr-text {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .panel-qr-text strong {
            display: block;
            color: var(--text-primary);
            font-size: 13px;
            margin-bottom: 2px;
        }

        /* ===== 核心介绍区 ===== */
        .cat-intro {
            background: var(--bg-dark);
        }

        .intro-media {
            position: relative;
            border-radius: var(--radius-panel);
            overflow: hidden;
            height: 100%;
            min-height: 320px;
            box-shadow: var(--shadow-card);
        }

        .intro-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .intro-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent, rgba(6, 10, 20, .6));
        }

        .intro-content h3 {
            font-size: 24px;
            line-height: 1.35;
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--text-primary);
        }

        .intro-content p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .intro-content p:last-child {
            margin-bottom: 0;
        }

        .intro-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 28px;
        }

        .intro-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
            background: rgba(34, 211, 238, 0.06);
            border: 1px solid rgba(34, 211, 238, 0.14);
            border-radius: var(--radius-pill);
            padding: 6px 14px;
        }

        .intro-tags span i {
            color: var(--brand-cyan);
            font-size: 12px;
        }

        /* ===== 攻略体系卖点区 ===== */
        .cat-features {
            background: var(--bg-primary);
        }

        .feature-wide {
            position: relative;
            border-radius: var(--radius-panel);
            padding: 48px;
            background-image: linear-gradient(120deg, rgba(11, 17, 32, .92), rgba(11, 27, 43, .82)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
            border: 1px solid var(--border-glass);
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .feature-wide h3 {
            font-size: 28px;
            line-height: 1.3;
            font-weight: 800;
            margin: 0 0 16px;
            color: var(--text-primary);
        }

        .feature-wide p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .feature-wide p:last-child {
            margin-bottom: 0;
        }

        .feature-wide .wide-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(59, 130, 246, .25), rgba(34, 211, 238, .2));
            border: 1px solid rgba(34, 211, 238, .3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--brand-cyan);
            margin-bottom: 20px;
            box-shadow: 0 0 24px rgba(34, 211, 238, .12);
        }

        .feature-card {
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            transition: all .3s ease;
            position: relative;
            overflow: hidden;
            height: 100%;
        }

        .feature-card:hover {
            background: var(--glass-bg-hover);
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, .35);
        }

        .feature-card .fc-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(59, 130, 246, .2), rgba(34, 211, 238, .15));
            border: 1px solid rgba(34, 211, 238, .2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--brand-cyan);
            margin-bottom: 20px;
        }

        .feature-card h4 {
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--text-primary);
        }

        .feature-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .feature-card .fc-data {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--brand-cyan);
            font-weight: 600;
        }

        .feature-card .fc-data i {
            font-size: 12px;
        }

        .feature-card.feature-gold {
            border-color: rgba(245, 179, 1, 0.25);
            background: rgba(245, 179, 1, 0.04);
            box-shadow: inset 0 0 40px rgba(245, 179, 1, 0.03);
        }

        .feature-card.feature-gold .fc-icon {
            background: linear-gradient(135deg, rgba(245, 179, 1, .2), rgba(245, 179, 1, .1));
            border-color: rgba(245, 179, 1, .25);
            color: var(--brand-gold);
        }

        .feature-card.feature-gold .fc-data {
            color: var(--brand-gold);
        }

        .feature-card.feature-gold::before {
            content: '推荐';
            position: absolute;
            top: 16px;
            right: -30px;
            background: linear-gradient(135deg, var(--brand-gold), #d99400);
            color: #0B1120;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 36px;
            transform: rotate(45deg);
            letter-spacing: 1px;
        }

        /* ===== 精选攻略列表区 ===== */
        .cat-guides {
            background: var(--bg-dark);
        }

        .guide-list .guide-item {
            display: flex;
            gap: 20px;
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            padding: 20px;
            margin-bottom: 18px;
            transition: all .3s ease;
        }

        .guide-item:hover {
            background: var(--glass-bg-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, .3);
        }

        .guide-thumb {
            width: 180px;
            min-width: 180px;
            height: 130px;
            border-radius: 12px;
            overflow: hidden;
            position: relative;
            background: linear-gradient(135deg, #1e293b, #0f172a);
        }

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

        .guide-item:hover .guide-thumb img {
            transform: scale(1.05);
        }

        .guide-info {
            flex: 1;
            min-width: 0;
        }

        .guide-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: var(--text-tertiary);
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

        .guide-meta .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 11px;
            font-weight: 600;
            color: var(--brand-cyan);
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.2);
            border-radius: var(--radius-pill);
            padding: 3px 10px;
        }

        .guide-info h3 {
            font-size: 18px;
            line-height: 1.4;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .guide-info p {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-secondary);
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .guide-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-cyan);
        }

        .guide-link:hover {
            color: #fff;
        }

        .guide-link i {
            font-size: 12px;
            transition: transform .3s;
        }

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

        /* 侧栏 */
        .sidebar-card {
            background: var(--glass-bg);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            padding: 24px;
            margin-bottom: 24px;
        }

        .sidebar-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-glass);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h4 i {
            color: var(--brand-gold);
            font-size: 14px;
        }

        .hot-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background .3s;
            border-radius: 8px;
        }

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

        .hot-item:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .hot-rank {
            width: 32px;
            height: 32px;
            border-radius: 10px;
            background: rgba(245, 179, 1, 0.1);
            border: 1px solid rgba(245, 179, 1, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-gold);
            font-size: 13px;
            flex-shrink: 0;
        }

        .hot-text {
            min-width: 0;
        }

        .hot-text strong {
            display: block;
            font-size: 14px;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .hot-text span {
            font-size: 12px;
            color: var(--text-tertiary);
        }

        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            border-radius: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            transition: all .3s;
            margin-bottom: 8px;
            border: 1px solid transparent;
        }

        .sidebar-link:hover {
            background: rgba(255, 255, 255, 0.04);
            color: #fff;
        }

        .sidebar-link.current {
            color: var(--brand-cyan);
            background: rgba(34, 211, 238, 0.06);
            border-color: rgba(34, 211, 238, 0.18);
            font-weight: 600;
        }

        /* ===== 流程区 ===== */
        .cat-process {
            background: linear-gradient(180deg, var(--bg-dark), var(--bg-primary));
        }

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

        .process-step {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            text-align: center;
            position: relative;
            transition: all .3s ease;
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-6px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, .3);
        }

        .step-num {
            position: absolute;
            top: 18px;
            left: 18px;
            font-size: 14px;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.15);
            letter-spacing: 1px;
        }

        .step-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(59, 130, 246, .2), rgba(34, 211, 238, .15));
            border: 1px solid rgba(34, 211, 238, .2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--brand-cyan);
        }

        .process-step h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
        }

        .process-step p {
            font-size: 13px;
            line-height: 1.6;
            color: var(--text-secondary);
            margin: 0;
        }

        .process-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(34, 211, 238, .4);
            font-size: 20px;
        }

        /* ===== FAQ ===== */
        .cat-faq {
            background: var(--bg-primary);
        }

        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-wrap .accordion {
            background: transparent;
            border: none;
        }

        .faq-wrap .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--border-glass);
            margin: 0;
        }

        .faq-wrap .accordion-title {
            background: transparent !important;
            border: none !important;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            padding: 22px 52px 22px 0;
            line-height: 1.4;
            position: relative;
            transition: color .3s;
        }

        .faq-wrap .accordion-title:hover {
            color: var(--brand-cyan);
        }

        .faq-wrap .accordion-title::after {
            content: '+';
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 30px;
            height: 30px;
            border: 1px solid var(--border-glass);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            color: var(--brand-cyan);
            background: rgba(255, 255, 255, 0.03);
            transition: transform .3s, background .3s, border-color .3s;
        }

        .faq-wrap .accordion-item.is-active>.accordion-title {
            color: var(--brand-cyan);
        }

        .faq-wrap .accordion-item.is-active>.accordion-title::after {
            transform: translateY(-50%) rotate(45deg);
            background: rgba(34, 211, 238, 0.1);
            border-color: rgba(34, 211, 238, 0.35);
        }

        .faq-wrap .accordion-content {
            background: rgba(255, 255, 255, 0.03) !important;
            border: 1px solid rgba(255, 255, 255, 0.05) !important;
            border-radius: 12px;
            padding: 18px 20px !important;
            margin-bottom: 16px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cat-cta {
            position: relative;
            padding: 100px 0;
            background-image: linear-gradient(180deg, rgba(6, 10, 20, .8), rgba(11, 27, 43, .88)), url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            text-align: center;
            overflow: hidden;
        }

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

        .cat-cta h2 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 18px;
            color: var(--text-primary);
        }

        .cat-cta p {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0 0 36px;
        }

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

        .cat-cta .cta-safe {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
            font-size: 12px;
            color: var(--text-tertiary);
        }

        .cat-cta .cta-safe span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .cat-cta .cta-safe i {
            color: var(--brand-cyan);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #05080F;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 60px 0 30px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand .brand-logo {
            margin-bottom: 14px;
        }

        .footer-brand .brand-text {
            font-size: 20px;
            display: block;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-tertiary);
            margin: 0;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--brand-gold);
            text-transform: uppercase;
            margin: 0 0 18px;
        }

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

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

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color .3s;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-newsletter h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .footer-newsletter p {
            font-size: 13px;
            color: var(--text-tertiary);
            margin: 0 0 16px;
            line-height: 1.6;
        }

        .footer-newsletter form {
            display: flex;
            gap: 8px;
        }

        .footer-newsletter input[type="email"] {
            flex: 1;
            height: 44px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-glass);
            padding: 0 14px;
            font-size: 14px;
            color: var(--text-primary);
            outline: none;
            transition: border-color .3s, box-shadow .3s;
            font-family: inherit;
        }

        .footer-newsletter input[type="email"]::placeholder {
            color: var(--text-tertiary);
        }

        .footer-newsletter input[type="email"]:focus {
            border-color: var(--brand-cyan);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.15);
        }

        .footer-newsletter button {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--gradient-cta);
            border: none;
            color: #fff;
            font-size: 15px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all .3s;
        }

        .footer-newsletter button:hover {
            box-shadow: var(--glow-blue);
            transform: translateY(-2px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

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

        .footer-security {
            display: flex;
            gap: 20px;
            font-size: 12px;
            color: var(--text-tertiary);
        }

        .footer-security span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .footer-security i {
            color: var(--brand-cyan);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .site-nav {
                width: calc(100% - 32px);
                padding: 10px 14px;
            }

            .nav-menu {
                position: fixed;
                top: 84px;
                right: 16px;
                width: 320px;
                max-width: calc(100vw - 32px);
                background: rgba(6, 10, 20, 0.97);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                border: 1px solid var(--border-glass);
                border-radius: 20px;
                padding: 20px;
                display: flex;
                flex-direction: column;
                gap: 8px;
                box-shadow: var(--shadow-float);
                visibility: hidden;
                opacity: 0;
                transform: translateY(-12px);
                transition: opacity .3s, transform .3s, visibility .3s;
            }

            .nav-menu.open {
                visibility: visible;
                opacity: 1;
                transform: translateY(0);
            }

            .nav-menu li a {
                padding: 14px 16px;
                font-size: 16px;
                border-radius: 12px;
            }

            .nav-menu li a.active {
                box-shadow: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-burger {
                display: flex;
            }

            .cat-hero {
                min-height: auto;
                padding: 140px 0 60px;
            }

            .feature-wide {
                grid-template-columns: 1fr;
                padding: 32px;
            }

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

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

        @media (max-width: 639px) {
            :root {
                --space-section: 64px;
            }

            .container {
                padding: 0 16px;
            }

            .section-title {
                font-size: 26px;
                line-height: 1.3;
            }

            .cat-hero h1 {
                font-size: 34px;
                line-height: 1.25;
            }

            .hero-sub {
                font-size: 16px;
            }

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

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

            .hero-trust {
                gap: 14px;
            }

            .hero-panel {
                padding: 20px;
            }

            .panel-downloads {
                flex-direction: column;
            }

            .feature-wide {
                padding: 28px 20px;
            }

            .guide-list .guide-item {
                flex-direction: column;
            }

            .guide-thumb {
                width: 100%;
                min-width: 0;
                height: 200px;
            }

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

            .process-arrow {
                transform: rotate(90deg);
            }

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

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

            .footer-security {
                justify-content: center;
                flex-wrap: wrap;
            }

            .cat-cta {
                padding: 64px 0;
            }

            .cat-cta h2 {
                font-size: 26px;
            }

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

/* roulang page: category2 */
:root {
  --bg-primary: #0B1120;
  --bg-secondary: #0B1B2B;
  --bg-deep: #060A14;
  --brand-blue: #3B82F6;
  --brand-cyan: #22D3EE;
  --brand-gold: #F5B301;
  --brand-purple: #7C3AED;
  --grad-brand: linear-gradient(135deg, #3B82F6, #22D3EE);
  --text-primary: #F1F5FB;
  --text-secondary: #94A3B8;
  --text-tertiary: #64748B;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-hover: rgba(255, 255, 255, 0.10);
  --glass-border: rgba(255, 255, 255, 0.12);
  --radius-sm: 10px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.25);
  --shadow-float: 0 16px 40px rgba(2, 6, 23, 0.45);
  --shadow-glow: 0 0 24px rgba(59, 130, 246, 0.35);
  --shadow-glow-hover: 0 0 36px rgba(59, 130, 246, 0.55);
  --shadow-gold: 0 0 24px rgba(245, 179, 1, 0.30);
  --space-section: 96px;
  --space-section-mobile: 64px;
  --font-cn: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-display: "Rajdhani", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
button, input, select, textarea { font-family: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 700; line-height: 1.25; color: var(--text-primary); }
p { margin: 0; }

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

.grid-x.grid-margin-x { margin-right: -12px; margin-left: -12px; }
.grid-x.grid-margin-x > .cell { margin-right: 12px; margin-left: 12px; }

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--brand-cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

.btn-primary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .5px;
  border-radius: var(--radius-pill);
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
}
.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  border: 1px solid rgba(34, 211, 238, .5);
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { box-shadow: var(--shadow-glow-hover); transform: translateY(-2px); }
.btn-primary:active, .btn-ghost:active { transform: translateY(1px) scale(.98); }
.btn-ghost {
  background: rgba(255, 255, 255, .06);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: rgba(34, 211, 238, .45); transform: translateY(-2px); box-shadow: 0 0 20px rgba(34, 211, 238, .18); }

/* ===== 悬浮胶囊导航 ===== */
.site-nav {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999;
  width: calc(100% - 48px);
  max-width: 1200px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 14px 10px 20px;
  background: rgba(10, 15, 30, 0.60);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-float);
  transition: background .3s ease, box-shadow .3s ease, border-radius .3s ease;
}
.site-nav.scrolled {
  background: rgba(6, 10, 20, .85);
  box-shadow: 0 16px 40px rgba(2, 6, 23, .55), 0 0 24px rgba(59, 130, 246, .14);
}
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: .5px;
  white-space: nowrap;
  position: relative;
  z-index: 2;
}
.brand-logo {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-brand);
  color: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-glow);
  font-size: 18px;
  flex: 0 0 auto;
}
.brand-text span { color: var(--brand-gold); }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-menu a {
  position: relative;
  display: inline-block;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .5px;
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  transition: color .25s ease, background .25s ease;
  white-space: nowrap;
}
.nav-menu a:hover { color: var(--text-primary); background: rgba(255, 255, 255, .08); }
.nav-menu a.active {
  color: var(--brand-cyan);
  background: rgba(34, 211, 238, .10);
  font-weight: 600;
}
.nav-menu a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand-cyan);
  box-shadow: 0 0 8px rgba(34, 211, 238, .8);
}
.nav-cta { display: block; }
.btn-download-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--grad-brand);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-glow);
  transition: box-shadow .3s ease, transform .25s ease;
  white-space: nowrap;
}
.btn-download-nav:hover { box-shadow: var(--shadow-glow-hover); transform: translateY(-1px); }
.btn-download-nav:active { transform: translateY(1px) scale(.98); }
.nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 18px;
  cursor: pointer;
  transition: background .25s ease, border-color .25s ease;
}
.nav-burger:hover { background: rgba(255, 255, 255, .12); border-color: rgba(34, 211, 238, .4); }

/* ===== 分类横幅 Hero ===== */
.cat-hero {
  position: relative;
  padding: 190px 0 120px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(11, 17, 32, .72), var(--bg-primary));
}
.cat-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: .9;
}
.cat-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 10, 20, .72) 0%, rgba(11, 17, 32, .55) 55%, var(--bg-primary) 100%);
}
.cat-hero-grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, .035) 0 1px, transparent 1px 60px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .035) 0 1px, transparent 1px 60px);
  pointer-events: none;
}
.cat-hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 1;
}
.cat-hero-glow.g1 { width: 340px; height: 340px; background: var(--brand-blue); top: -80px; left: 8%; opacity: .30; }
.cat-hero-glow.g2 { width: 280px; height: 280px; background: var(--brand-gold); bottom: 10px; right: 6%; opacity: .16; }
.hero-inner { position: relative; z-index: 2; text-align: center; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(34, 211, 238, .10);
  border: 1px solid rgba(34, 211, 238, .35);
  border-radius: var(--radius-pill);
  color: var(--brand-cyan);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  box-shadow: 0 0 20px rgba(34, 211, 238, .15);
}
.hero-title {
  font-size: 48px;
  line-height: 1.18;
  margin: 20px 0 16px;
  color: var(--text-primary);
}
.hero-title span { color: var(--brand-gold); }
.hero-sub {
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 34px;
}
.hero-ctas { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 56px;
  margin-top: 52px;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--brand-cyan);
  letter-spacing: .5px;
  line-height: 1.2;
}
.stat-item span { font-size: 13px; color: var(--text-tertiary); letter-spacing: .5px; }

/* ===== 通用板块 ===== */
.section { position: relative; padding: var(--space-section) 0; }
.section-head { text-align: center; max-width: 740px; margin: 0 auto 56px; }
.section-eyebrow {
  display: inline-block;
  padding: 6px 18px;
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--brand-cyan);
  background: rgba(34, 211, 238, .10);
  border: 1px solid rgba(34, 211, 238, .25);
  border-radius: var(--radius-pill);
}
.section-title { font-size: 36px; line-height: 1.25; margin: 16px 0 12px; }
.section-sub { font-size: 16px; line-height: 1.8; color: var(--text-secondary); }

/* ===== 社区特色 2+1 不对称 ===== */
.feature-section { background: transparent; }
.feature-wide {
  position: relative;
  min-height: 290px;
  padding: 42px 40px;
  display: flex;
  align-items: center;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  border: 1px solid var(--glass-border);
  margin-bottom: 0;
}
.feature-wide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6, 10, 20, .92) 20%, rgba(11, 17, 32, .62) 75%, rgba(11, 17, 32, .35));
}
.feature-wide-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  max-width: 760px;
}
.feature-wide-text h3 { font-size: 28px; margin-bottom: 14px; }
.feature-paragraphs p { color: var(--text-secondary); font-size: 15px; line-height: 1.85; max-width: 620px; }
.feature-paragraphs p + p { margin-top: 10px; }
.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(59, 130, 246, .25), rgba(34, 211, 238, .18));
  border: 1px solid rgba(34, 211, 238, .35);
  color: var(--brand-cyan);
  font-size: 20px;
  box-shadow: 0 0 18px rgba(34, 211, 238, .18);
  flex: 0 0 auto;
}
.feature-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  min-height: 260px;
  transition: transform .3s ease, box-shadow .3s ease, background .3s ease, border-color .3s ease;
}
.feature-card h3 { font-size: 22px; margin: 24px 0 12px; }
.feature-card p { font-size: 14px; line-height: 1.8; color: var(--text-secondary); }
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 24px rgba(34, 211, 238, .22), var(--shadow-card);
  background: var(--glass-hover);
  border-color: rgba(34, 211, 238, .35);
}
.gold-card {
  background: linear-gradient(135deg, rgba(11, 27, 43, .92), rgba(6, 10, 20, .94));
  border: 1px solid rgba(245, 179, 1, .35);
  box-shadow: var(--shadow-gold);
}
.gold-card:hover { transform: translateY(-4px); box-shadow: 0 0 32px rgba(245, 179, 1, .30), var(--shadow-card); border-color: rgba(245, 179, 1, .55); }
.gold-card .feature-icon {
  color: var(--brand-gold);
  border-color: rgba(245, 179, 1, .4);
  background: rgba(245, 179, 1, .12);
  box-shadow: 0 0 18px rgba(245, 179, 1, .2);
}
.feature-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 22px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-cyan);
  transition: gap .25s ease, color .25s ease;
}
.feature-link:hover { gap: 11px; color: var(--brand-gold); }
.feature-data {
  display: inline-block;
  margin-top: auto;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: rgba(245, 179, 1, .14);
  border: 1px solid rgba(245, 179, 1, .4);
  color: var(--brand-gold);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .5px;
}

/* ===== 热门话题瀑布 ===== */
.posts-section {
  background: linear-gradient(180deg, transparent, rgba(11, 27, 43, .55) 15%, rgba(11, 27, 43, .55) 85%, transparent);
}
.posts-section::before {
  content: "";
  position: absolute;
  top: 8%;
  right: -120px;
  width: 300px;
  height: 300px;
  background: rgba(59, 130, 246, .14);
  filter: blur(100px);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}
.posts-section > .grid-container { position: relative; z-index: 1; }
.waterfall-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.waterfall-right .post-card:nth-child(even) { margin-top: 28px; }
.waterfall-left .post-card:nth-child(even) { margin-top: 16px; }
.post-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.post-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(2, 6, 23, .45), 0 0 20px rgba(34, 211, 238, .18);
  border-color: rgba(34, 211, 238, .35);
}
.post-cover { position: relative; overflow: hidden; }
.waterfall-left .post-cover { aspect-ratio: 16 / 9; }
.waterfall-right .post-cover { aspect-ratio: 4 / 3; }
.post-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.post-card:hover .post-cover img { transform: scale(1.045); }
.post-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(6, 10, 20, .55));
}
.post-tag {
  position: absolute;
  left: 16px;
  top: 16px;
  z-index: 2;
  padding: 5px 14px;
  background: rgba(6, 10, 20, .68);
  border: 1px solid rgba(34, 211, 238, .4);
  border-radius: var(--radius-pill);
  color: var(--brand-cyan);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.post-body { padding: 24px 26px 26px; }
.waterfall-left .post-title { font-size: 20px; }
.waterfall-right .post-title { font-size: 17px; }
.post-title { color: var(--text-primary); line-height: 1.4; margin-bottom: 12px; }
.post-title a { transition: color .25s ease; }
.post-title a:hover { color: var(--brand-cyan); }
.post-excerpt {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}
.post-meta i { margin-right: 4px; color: var(--brand-cyan); }
.post-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-cyan);
  transition: gap .25s ease, color .25s ease;
}
.post-link:hover { gap: 11px; color: var(--brand-gold); }

/* ===== 参与方式 ===== */
.process-section {
  background:
    radial-gradient(circle at 15% 85%, rgba(34, 211, 238, .07) 0, transparent 30%),
    radial-gradient(circle at 85% 20%, rgba(245, 179, 1, .05) 0, transparent 28%);
}
.process-steps { margin-top: 8px; }
.process-step {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 40px 32px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.process-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(2, 6, 23, .4), 0 0 20px rgba(34, 211, 238, .16);
  border-color: rgba(34, 211, 238, .3);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--grad-brand);
  border-radius: 14px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  box-shadow: var(--shadow-glow);
  margin-bottom: 22px;
}
.process-step h3 { font-size: 20px; margin-bottom: 12px; }
.process-step p { font-size: 14px; line-height: 1.8; color: var(--text-secondary); }
.process-note {
  text-align: center;
  margin-top: 44px;
  font-size: 14px;
  color: var(--text-tertiary);
}
.process-note i { color: var(--brand-cyan); margin-right: 6px; }

/* ===== FAQ 手风琴 ===== */
.faq-section {
  background: linear-gradient(180deg, transparent, rgba(11, 27, 43, .5) 18%, rgba(11, 27, 43, .5) 82%, transparent);
}
.faq-accordion {
  background: transparent;
  border: 0;
  margin: 0 auto;
  max-width: 800px;
}
.faq-accordion .accordion-item {
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}
.faq-accordion .accordion-item:first-child > :first-child,
.faq-accordion .accordion-item:last-child > :last-child { border-radius: 0; }
.faq-accordion .accordion-title {
  display: block;
  position: relative;
  padding: 22px 54px 22px 0;
  border: 0 !important;
  background: transparent !important;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-primary);
  transition: color .25s ease;
}
.faq-accordion .accordion-title:hover,
.faq-accordion .accordion-title:focus {
  color: var(--brand-cyan);
  background: transparent !important;
}
.faq-accordion .accordion-title::before {
  content: '+';
  position: absolute;
  top: 50%;
  right: 0;
  width: 34px;
  height: 34px;
  margin-top: -17px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 50%;
  color: var(--brand-cyan);
  font-size: 18px;
  font-weight: 400;
  transform: rotate(0deg);
  transition: transform .3s ease, background .3s ease, border-color .3s ease, color .3s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::before {
  transform: rotate(45deg);
  background: rgba(34, 211, 238, .18);
  border-color: rgba(34, 211, 238, .4);
  color: var(--brand-cyan);
}
.faq-accordion .accordion-content {
  display: none;
  padding: 0 0 22px;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}
.faq-accordion .accordion-content.is-active { display: block; }
.faq-accordion .accordion-content p {
  margin: 0;
  padding: 18px 22px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
}

/* ===== CTA 区块 ===== */
.cta-section { padding: var(--space-section) 0 120px; }
.cta-box {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 80px 40px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(59, 130, 246, .22), rgba(34, 211, 238, .12)),
    url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  border: 1px solid rgba(34, 211, 238, .3);
}
.cta-box::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(6, 10, 20, .55);
  pointer-events: none;
}
.cta-box h2, .cta-box p, .cta-buttons, .security-tags { position: relative; z-index: 2; }
.cta-box h2 { font-size: 36px; margin-bottom: 14px; }
.cta-box p { font-size: 16px; color: var(--text-secondary); max-width: 560px; margin: 0 auto 32px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.security-tags {
  display: flex;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
  margin-top: 34px;
  font-size: 13px;
  color: var(--text-tertiary);
}
.security-tags span { display: inline-flex; align-items: center; gap: 6px; }
.security-tags i { color: var(--brand-cyan); }

/* ===== 页脚 ===== */
.site-footer {
  background: #05080F;
  padding: 80px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, .06);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-brand .brand-logo { width: 42px; height: 42px; font-size: 20px; }
.footer-brand .brand-text { font-size: 20px; font-weight: 800; display: flex; align-items: center; margin-top: 16px; }
.footer-brand .brand-text span { color: var(--brand-gold); }
.footer-brand p { font-size: 14px; line-height: 1.8; color: var(--text-secondary); margin-top: 14px; max-width: 320px; }
.footer-col h4 {
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--brand-gold);
  margin-bottom: 18px;
  font-weight: 600;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: var(--text-secondary); transition: color .25s ease, padding-left .25s ease; }
.footer-col ul a:hover { color: var(--text-primary); padding-left: 4px; }
.footer-newsletter h4 { font-size: 13px; letter-spacing: 1px; color: var(--brand-gold); margin-bottom: 12px; font-weight: 600; }
.footer-newsletter p { font-size: 13px; line-height: 1.7; color: var(--text-tertiary); margin-bottom: 16px; }
.footer-newsletter form { display: flex; gap: 8px; }
.footer-newsletter input {
  flex: 1;
  min-width: 0;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--glass-border);
  padding: 0 16px;
  color: var(--text-primary);
  font-size: 14px;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.footer-newsletter input::placeholder { color: var(--text-tertiary); }
.footer-newsletter input:focus {
  outline: none;
  border-color: var(--brand-cyan);
  box-shadow: 0 0 14px rgba(34, 211, 238, .25);
}
.footer-newsletter button {
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--grad-brand);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  box-shadow: var(--shadow-glow);
  transition: box-shadow .25s ease, transform .25s ease;
}
.footer-newsletter button:hover { box-shadow: var(--shadow-glow-hover); transform: translateY(-1px); }
.footer-newsletter button:active { transform: translateY(1px) scale(.97); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 32px;
}
.footer-bottom p { font-size: 13px; color: var(--text-tertiary); margin: 0; }
.footer-security { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-security span { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-tertiary); }
.footer-security i { color: var(--brand-cyan); }

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .nav-menu, .nav-cta { display: none; }
  .nav-burger { display: inline-flex; }
  .site-nav.nav-open {
    flex-wrap: wrap;
    border-radius: 24px;
    padding-bottom: 16px;
  }
  .site-nav.nav-open .nav-menu {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    order: 3;
    width: 100%;
    margin-top: 10px;
  }
  .site-nav.nav-open .nav-menu a { padding: 14px 16px; font-size: 16px; border-radius: var(--radius-md); }
  .site-nav.nav-open .nav-cta {
    display: block;
    order: 4;
    width: 100%;
    margin-top: 10px;
  }
  .site-nav.nav-open .btn-download-nav { width: 100%; justify-content: center; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .hero-title { font-size: 40px; }
  .section-title { font-size: 30px; }
  .cta-box h2 { font-size: 30px; }
}
@media (min-width: 1024px) {
  .nav-menu { display: flex; }
  .nav-cta { display: block; }
  .nav-burger { display: none; }
}
@media (max-width: 639px) {
  .container,
  .grid-container { padding-left: 16px; padding-right: 16px; }
  .site-nav { width: calc(100% - 32px); top: 12px; padding: 10px 12px 10px 16px; }
  .brand-text { font-size: 16px; }
  .brand-logo { width: 34px; height: 34px; font-size: 16px; }
  .cat-hero { padding: 150px 0 80px; }
  .hero-title { font-size: 34px; }
  .hero-sub { font-size: 15px; }
  .hero-stats { gap: 22px; margin-top: 40px; }
  .stat-item strong { font-size: 26px; }
  .section { padding: var(--space-section-mobile) 0; }
  .section-title { font-size: 26px; }
  .section-head { margin-bottom: 40px; }
  .section-sub { font-size: 15px; }
  .feature-wide { padding: 28px 22px; min-height: 240px; }
  .feature-wide-content { flex-direction: column; }
  .feature-wide-text h3 { font-size: 24px; }
  .feature-card { padding: 28px 22px; }
  .waterfall-grid { display: block; }
  .waterfall-left, .waterfall-right { width: 100% !important; }
  .waterfall-right { margin-top: 24px; }
  .waterfall-right .post-card:nth-child(even),
  .waterfall-left .post-card:nth-child(even) { margin-top: 18px; }
  .post-body { padding: 20px 18px 22px; }
  .process-step { padding: 30px 24px; }
  .process-note { margin-top: 32px; }
  .faq-accordion .accordion-title { font-size: 15px; }
  .cta-section { padding: var(--space-section-mobile) 0 80px; }
  .cta-box { padding: 52px 22px; }
  .cta-box h2 { font-size: 26px; }
  .cta-buttons { flex-direction: column; }
  .cta-buttons .btn-primary, .cta-buttons .btn-ghost { width: 100%; }
  .security-tags { gap: 12px; }
  .site-footer { padding: 64px 0 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-newsletter form { flex-direction: column; }
  .footer-newsletter button { width: 100%; }
}