/* roulang page: index */
:root {
  --color-bg: #070D1A;
  --color-bg-alt: #0B1220;
  --color-bg-card: rgba(255,255,255,0.045);
  --color-bg-card-hover: rgba(255,255,255,0.085);
  --glass-bg: linear-gradient(165deg, rgba(255,255,255,0.09), rgba(255,255,255,0.02));
  --glass-border: rgba(255,255,255,0.12);
  --glass-blur: 16px;
  --primary: #2E6FFF;
  --primary-hover: #4D85FF;
  --primary-active: #1C54D6;
  --accent-magenta: #E6336D;
  --accent-cyan: #29D3D0;
  --text-1: #E8EEF7;
  --text-2: #9AA9BD;
  --text-3: #65748B;
  --success: #3BCB7D;
  --warning: #F5B84B;
  --error: #F45858;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-btn: 0 8px 30px rgba(46,111,255,0.45), inset 0 1px 0 rgba(255,255,255,0.25);
  --shadow-btn-hover: 0 10px 40px rgba(46,111,255,0.6);
  --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-en: "Inter","SF Pro Display","DIN Alternate",sans-serif;
  --space-section: 96px;
  --space-section-md: 64px;
  --space-section-sm: 48px;
  --transition: 200ms ease;
  --z-dock: 900;
  --z-drawer: 950;
  --z-search: 920;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-1);
  background-color: var(--color-bg);
  background-image:
    linear-gradient(rgba(255,255,255,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.028) 1px, transparent 1px);
  background-size: 48px 48px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(600px 400px at 12% -5%, rgba(46,111,255,0.16), transparent 65%),
    radial-gradient(500px 380px at 100% 110%, rgba(230,51,109,0.06), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

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

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

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

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

input, textarea, select {
  font-family: inherit;
  font-size: 14px;
  color: var(--text-1);
}

::placeholder {
  color: var(--text-3);
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

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

.section-alt {
  background: rgba(11,18,32,0.55);
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}

.section-title-wrap {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.section-index {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 600;
  color: var(--accent-magenta);
  letter-spacing: 1px;
  line-height: 1.4;
  padding-top: 8px;
  font-variant-numeric: tabular-nums;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.25;
  color: var(--text-1);
}

.section-sub {
  margin-top: 8px;
  font-size: 15px;
  color: var(--text-2);
  max-width: 640px;
}

.section-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  padding: 10px 0;
  min-height: 44px;
}

.section-link:hover {
  color: var(--accent-cyan);
}

/* ===== Dock 导航 ===== */
.dock-wrap {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: min(1200px, calc(100% - 32px));
  z-index: var(--z-dock);
}

.dock-nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  padding: 0 18px 0 22px;
  border-radius: 999px;
  background: rgba(9,13,26,0.72);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid rgba(255,255,255,0.10);
  box-shadow: 0 12px 40px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.12);
}

.dock-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-1);
  flex-shrink: 0;
  min-height: 44px;
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #1C54D6);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(46,111,255,0.4);
}

.brand-text {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.dock-links {
  display: flex;
  align-items: center;
  gap: 2px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.dock-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: 999px;
  white-space: nowrap;
  transition: color var(--transition);
}

.dock-link:hover {
  color: var(--text-1);
}

.dock-link::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-cyan);
  opacity: 0;
  transition: opacity var(--transition);
}

.dock-link:hover::after,
.dock-link.active::after {
  opacity: 1;
}

.dock-link.active {
  color: var(--primary-hover);
}

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

.dock-search-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: all var(--transition);
}

.dock-search-btn:hover {
  border-color: var(--primary);
  color: var(--text-1);
}

.dock-download-btn {
  min-height: 40px;
  padding: 0 20px;
  border-radius: 999px;
  font-size: 14px;
}

.dock-burger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
}

.dock-burger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-1);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.dock-burger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.dock-burger.open span:nth-child(2) {
  opacity: 0;
}

.dock-burger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.dock-search {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  right: 0;
  padding: 14px;
  border-radius: 16px;
  background: rgba(9,13,26,0.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
  display: none;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 200ms ease, transform 200ms ease;
}

.dock-search.show {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.dock-search form {
  display: flex;
  gap: 10px;
}

.dock-search input {
  flex: 1;
  height: 44px;
  padding: 0 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  color: var(--text-1);
  transition: all var(--transition);
}

.dock-search input:focus {
  border-color: rgba(46,111,255,0.6);
  box-shadow: 0 0 0 3px rgba(46,111,255,0.15);
  background: rgba(255,255,255,0.09);
  outline: none;
}

.dock-search button {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.dock-search button:hover {
  background: var(--primary-hover);
}

/* ===== 移动抽屉 ===== */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: var(--z-drawer);
  background: rgba(7,13,26,0.97);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  padding: 32px 28px 48px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 300ms ease, visibility 300ms ease;
}

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

.mobile-drawer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}

.mobile-drawer-close {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-1);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-drawer-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-drawer-links a {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-1);
  padding: 14px 4px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-drawer-links a i {
  font-size: 16px;
  color: var(--text-3);
}

.mobile-drawer-cta {
  margin-top: 32px;
}

/* ===== 按钮系统 ===== */
.btn-main {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #2E6FFF 0%, #1C54D6 100%);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  padding: 0 28px;
  height: 48px;
  box-shadow: var(--shadow-btn);
  transition: all var(--transition);
  border: none;
  white-space: nowrap;
}

.btn-main:hover {
  filter: brightness(1.12);
  color: #fff;
  box-shadow: var(--shadow-btn-hover);
  transform: translateY(-2px);
}

.btn-main:active {
  transform: translateY(0);
  box-shadow: var(--shadow-btn);
}

.btn-main.btn-lg {
  height: 56px;
  padding: 0 34px;
  font-size: 16px;
}

.btn-main.btn-sm {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
  border-radius: 999px;
}

.btn-glass {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text-1);
  font-size: 15px;
  font-weight: 500;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-glass:hover {
  border-color: rgba(41,211,208,0.6);
  background: rgba(255,255,255,0.12);
  color: var(--text-1);
  transform: translateY(-2px);
}

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

.btn-lg {
  height: 56px;
  padding: 0 34px;
}

/* ===== 玻璃卡片 ===== */
.glass-card {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.12);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.glass-card:hover {
  transform: translateY(-4px);
  border-color: rgba(46,111,255,0.4);
  box-shadow: 0 0 40px rgba(46,111,255,0.15), inset 0 1px 0 rgba(255,255,255,0.12);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  padding: 140px 0 64px;
  background: var(--color-bg);
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(700px 480px at 12% -10%, rgba(46,111,255,0.18), transparent 65%),
    radial-gradient(420px 320px at 100% 100%, rgba(230,51,109,0.08), transparent 60%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 52% 48%;
  gap: 48px;
  align-items: center;
}

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

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 1px;
  text-transform: uppercase;
  background: rgba(41,211,208,0.1);
  border: 1px solid rgba(41,211,208,0.25);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.hero-kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px rgba(41,211,208,0.8);
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.15;
  color: var(--text-1);
  margin-bottom: 16px;
}

.hero-sub {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-cta-group {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-3);
  flex-wrap: wrap;
}

.hero-trust .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-3);
}

.hero-visual {
  position: relative;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: -40px;
  background: radial-gradient(circle at 50% 50%, rgba(46,111,255,0.15), transparent 60%);
  pointer-events: none;
}

.hero-screen {
  position: relative;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.14);
  box-shadow: 0 24px 80px rgba(0,0,0,0.5), 0 0 60px rgba(41,211,208,0.12), inset 0 1px 0 rgba(255,255,255,0.15);
  overflow: hidden;
  background: var(--color-bg-alt);
}

.hero-screen img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.hero-screen-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: rgba(9,13,26,0.9);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.hero-screen-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.hero-screen-bar span:nth-child(1) { background: #F45858; }
.hero-screen-bar span:nth-child(2) { background: #F5B84B; }
.hero-screen-bar span:nth-child(3) { background: #3BCB7D; }

.hero-register-mark {
  position: absolute;
  bottom: 16px;
  right: 16px;
  width: 48px;
  height: 48px;
  opacity: 0.3;
  pointer-events: none;
}

.hero-register-mark::before,
.hero-register-mark::after {
  content: "";
  position: absolute;
  width: 28px;
  height: 1.5px;
  background: var(--accent-magenta);
  top: 50%;
  left: 50%;
  transform-origin: center;
}

.hero-register-mark::before {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.hero-register-mark::after {
  transform: translate(-50%, -50%) rotate(45deg);
  background: var(--accent-cyan);
}

/* ===== 功能轮播 ===== */
.features {
  position: relative;
  overflow: hidden;
  background: rgba(11,18,32,0.45);
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.carousel-wrap {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
}

.carousel-track {
  display: flex;
  overflow: hidden;
  border-radius: 20px;
}

.carousel-slide {
  min-width: 100%;
  transition: transform 0.6s ease;
}

.carousel-slide-inner {
  padding: 8px;
}

.carousel-shot {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.12);
  background: var(--color-bg-alt);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}

.carousel-shot img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.carousel-caption {
  padding: 20px 8px 8px;
  text-align: left;
}

.carousel-caption h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 6px;
}

.carousel-caption p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-2);
  max-width: 560px;
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 28px;
}

.carousel-arrow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text-2);
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.carousel-arrow:hover {
  border-color: var(--primary-hover);
  color: var(--text-1);
  background: rgba(255,255,255,0.12);
}

.carousel-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.carousel-dot {
  width: 24px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255,255,255,0.3);
  border: none;
  padding: 0;
  transition: all var(--transition);
}

.carousel-dot.active {
  background: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(41,211,208,0.5);
  width: 36px;
}

/* ===== 系统要求 ===== */
.sysreq-panel {
  max-width: 760px;
  margin: 0 auto;
}

.sysreq-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.sysreq-tab {
  height: 36px;
  padding: 0 20px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.sysreq-tab i {
  font-size: 13px;
}

.sysreq-tab:hover {
  border-color: rgba(255,255,255,0.3);
  color: var(--text-1);
}

.sysreq-tab.active {
  background: var(--primary);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 20px rgba(46,111,255,0.4);
}

.sysreq-body {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  box-shadow: var(--shadow-card);
  padding: 28px 32px;
  min-height: 320px;
}

.sysreq-list {
  list-style: none;
}

.sysreq-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 0;
  border-bottom: 0.5px solid rgba(255,255,255,0.1);
}

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

.sysreq-label {
  font-size: 14px;
  color: var(--text-2);
  flex-shrink: 0;
}

.sysreq-value {
  font-size: 14px;
  color: var(--text-1);
  font-family: var(--font-en);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

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

.faq-item {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item:hover {
  border-color: rgba(255,255,255,0.2);
}

.faq-item.active {
  border-color: rgba(46,111,255,0.4);
  box-shadow: 0 0 20px rgba(46,111,255,0.08);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  min-height: 56px;
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  text-align: left;
  background: none;
  border: none;
}

.faq-icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--text-2);
  border-radius: 2px;
  transition: all var(--transition);
}

.faq-icon::before {
  width: 14px;
  height: 2px;
}

.faq-icon::after {
  width: 2px;
  height: 14px;
}

.faq-item.active .faq-icon::before,
.faq-item.active .faq-icon::after {
  background: var(--primary-hover);
}

.faq-item.active .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 300ms ease;
}

.faq-answer-inner {
  padding: 0 20px 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-2);
}

/* ===== 评价墙 ===== */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: linear-gradient(165deg, rgba(255,255,255,0.11), rgba(255,255,255,0.03));
}

.testimonial-card .stars {
  display: flex;
  gap: 2px;
  font-size: 15px;
  color: var(--warning);
}

.testimonial-card .stars .fa-regular {
  color: rgba(255,255,255,0.2);
}

.testimonial-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-2);
  flex: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-3);
  flex-shrink: 0;
}

.testimonial-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
}

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

/* ===== 最新资讯 ===== */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.post-card {
  display: flex;
  gap: 20px;
  padding: 16px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  transition: all var(--transition);
}

.post-card:hover {
  transform: translateY(-3px);
  border-color: rgba(46,111,255,0.35);
  box-shadow: 0 0 30px rgba(46,111,255,0.1);
}

.post-thumb {
  position: relative;
  width: 160px;
  height: 112px;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-thumb .no-thumb-icon,
.post-thumb .thumb-placeholder {
  font-size: 28px;
  color: rgba(255,255,255,0.25);
  display: none;
}

.post-thumb.no-thumb img {
  display: none;
}

.post-thumb.no-thumb .no-thumb-icon {
  display: block;
}

.post-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.post-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  background: rgba(230,51,109,0.12);
  color: #FF6B94;
  font-size: 12px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 6px;
  line-height: 1.4;
}

.post-info h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.post-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
}

.post-meta time {
  font-size: 12px;
  color: var(--text-3);
  font-family: var(--font-en);
}

.read-more {
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color var(--transition);
}

.read-more:hover {
  color: var(--accent-cyan);
}

.news-empty {
  border: 1.5px dashed rgba(255,255,255,0.2);
  border-radius: 16px;
  padding: 56px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.news-empty i {
  font-size: 36px;
  color: rgba(255,255,255,0.25);
  margin-bottom: 8px;
}

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

.news-empty span {
  font-size: 13px;
  color: var(--text-3);
}

/* ===== CTA 下载 ===== */
.download-section {
  position: relative;
  overflow: hidden;
  background-image: linear-gradient(to bottom, rgba(7,13,26,0.15), rgba(7,13,26,0.92)), url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  padding: 110px 0;
}

.download-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(7,13,26,0.35);
  pointer-events: none;
}

.download-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

.download-content h2 {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--text-1);
  margin-bottom: 12px;
}

.download-content .download-sub {
  font-size: 16px;
  color: var(--text-2);
  margin-bottom: 40px;
}

.download-btn-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.download-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 128px;
  height: 64px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-1);
  transition: all var(--transition);
}

.download-btn i {
  font-size: 22px;
}

.download-btn-main {
  background: linear-gradient(135deg, #2E6FFF 0%, #1C54D6 100%);
  color: #fff;
  box-shadow: 0 8px 30px rgba(46,111,255,0.5), inset 0 1px 0 rgba(255,255,255,0.25);
}

.download-btn-main:hover {
  color: #fff;
  filter: brightness(1.12);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(46,111,255,0.6);
}

.download-btn-glass {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.download-btn-glass:hover {
  color: var(--text-1);
  border-color: rgba(41,211,208,0.6);
  background: rgba(255,255,255,0.12);
  transform: translateY(-3px);
}

.download-version {
  font-size: 13px;
  color: var(--text-3);
  font-family: var(--font-en);
}

/* ===== 页脚 ===== */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 0;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.footer-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand-block {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-1);
  font-size: 18px;
  font-weight: 600;
}

.footer-brand .brand-mark {
  width: 36px;
  height: 36px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
  max-width: 280px;
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--text-2);
  transition: all var(--transition);
}

.footer-social a:hover {
  color: var(--text-1);
  border-color: var(--primary);
  background: rgba(46,111,255,0.1);
}

.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 18px;
  letter-spacing: 0.3px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  transition: all var(--transition);
}

.footer-links a:hover {
  color: var(--primary-hover);
  transform: translateX(2px);
}

.footer-contact {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 14px;
  color: var(--text-2);
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.6;
}

.footer-contact i {
  width: 18px;
  text-align: center;
  color: var(--text-3);
  margin-top: 3px;
}

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

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

.footer-copyright {
  font-size: 13px;
  color: var(--text-3);
  font-family: var(--font-en);
}

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

/* ===== 响应式 ===== */
@media (max-width: 1199px) {
  .dock-links {
    position: static;
    transform: none;
    margin-left: auto;
    margin-right: 16px;
  }
}

@media (max-width: 1023px) {
  :root {
    --space-section: 64px;
  }

  .dock-links {
    display: none;
  }

  .dock-burger {
    display: flex;
  }

  .dock-search {
    left: 0;
    right: 0;
  }

  .hero {
    padding-top: 120px;
  }

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

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

  .hero h1 {
    font-size: 40px;
  }

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

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

@media (max-width: 767px) {
  :root {
    --space-section: 48px;
  }

  body {
    font-size: 15px;
  }

  .container {
    padding: 0 20px;
  }

  .dock-wrap {
    top: 8px;
    width: calc(100% - 20px);
  }

  .dock-nav {
    height: 52px;
    padding: 0 10px 0 14px;
    border-radius: 16px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
    border-radius: 9px;
  }

  .brand-text {
    font-size: 16px;
  }

  .dock-search-btn {
    width: 40px;
    height: 40px;
  }

  .dock-download-btn {
    display: none;
  }

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

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

  .section-index {
    font-size: 15px;
  }

  .hero {
    min-height: auto;
    padding: 110px 0 48px;
  }

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

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

  .hero-cta-group {
    flex-direction: column;
  }

  .hero-cta-group .btn-main,
  .hero-cta-group .btn-glass {
    width: 100%;
  }

  .hero-trust {
    font-size: 12px;
  }

  .carousel-caption h3 {
    font-size: 18px;
  }

  .carousel-caption p {
    font-size: 14px;
  }

  .sysreq-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .sysreq-tab {
    flex-shrink: 0;
    padding: 0 16px;
  }

  .sysreq-body {
    padding: 20px;
  }

  .sysreq-list li {
    flex-direction: column;
    justify-content: flex-start;
    gap: 4px;
    padding: 16px 0;
  }

  .sysreq-value {
    text-align: left;
  }

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

  .post-card {
    flex-direction: column;
    gap: 14px;
  }

  .post-thumb {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }

  .post-info h3 {
    font-size: 17px;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }

  .post-info p {
    -webkit-line-clamp: 2;
  }

  .download-section {
    padding: 72px 0;
  }

  .download-content h2 {
    font-size: 26px;
  }

  .download-btn-group {
    gap: 12px;
  }

  .download-btn {
    width: calc(50% - 12px);
    height: 60px;
    flex-direction: row;
    gap: 10px;
  }

  .download-btn i {
    font-size: 20px;
  }

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

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

  .mobile-drawer-links a {
    font-size: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* roulang page: article */
:root {
  --color-bg: #070D1A;
  --color-bg-alt: #0B1220;
  --glass-bg: linear-gradient(165deg, rgba(255,255,255,0.09), rgba(255,255,255,0.02));
  --glass-border: rgba(255,255,255,0.12);
  --glass-blur: 16px;
  --primary: #2E6FFF;
  --primary-hover: #4D85FF;
  --primary-active: #1C54D6;
  --accent-1: #E6336D;
  --accent-2: #29D3D0;
  --text-1: #E8EEF7;
  --text-2: #9AA9BD;
  --text-3: #65748B;
  --success: #3BCB7D;
  --warning: #F5B84B;
  --error: #F45858;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-btn: 0 8px 30px rgba(46,111,255,0.45), inset 0 1px 0 rgba(255,255,255,0.25);
  --transition: 200ms ease;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "SF Pro Display", "DIN Alternate", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  background-color: var(--color-bg);
  background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--text-1);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  top: -200px; left: -120px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(46,111,255,0.15), transparent 65%);
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: "";
  position: fixed;
  bottom: -150px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(230,51,109,0.08), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-hover); }
button { font-family: var(--font-cn); cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: var(--font-cn); }
.container { width: min(1200px, calc(100% - 48px)); margin-inline: auto; position: relative; z-index: 1; }
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 4px; }
@media (max-width: 767px) {
  .container { width: min(100% - 32px, 1200px); }
}

/* ===== Dock 导航 ===== */
.dock-wrap {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: min(1200px, calc(100% - 32px));
  z-index: 100;
}
.dock-nav {
  display: flex;
  align-items: center;
  height: 60px;
  padding: 0 16px 0 20px;
  border-radius: 999px;
  background: rgba(9,13,26,0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid rgba(255,255,255,0.10);
  box-shadow: 0 12px 40px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.12);
  gap: 24px;
}
.dock-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-active) 100%);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; color: #fff;
  box-shadow: 0 4px 16px rgba(46,111,255,0.4), inset 0 1px 0 rgba(255,255,255,0.3);
  font-family: var(--font-cn);
}
.brand-text { font-size: 16px; font-weight: 600; color: var(--text-1); letter-spacing: 0.5px; }
.dock-links { display: flex; align-items: center; gap: 6px; flex: 1; justify-content: center; }
.dock-link {
  position: relative;
  padding: 8px 14px;
  font-size: 15px; font-weight: 500;
  color: var(--text-2);
  border-radius: 999px;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.dock-link::after {
  content: "";
  position: absolute;
  bottom: 2px; left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 16px; height: 2px;
  background: var(--accent-2);
  border-radius: 2px;
  transition: transform var(--transition);
}
.dock-link:hover { color: var(--text-1); }
.dock-link:hover::after, .dock-link.active::after { transform: translateX(-50%) scaleX(1); }
.dock-link.active { color: var(--primary-hover); }
.dock-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.dock-search-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-2);
  transition: all var(--transition);
}
.dock-search-btn:hover { border-color: rgba(41,211,208,0.6); color: var(--accent-2); background: rgba(255,255,255,0.12); }
.btn-main {
  display: inline-flex;
  align-items: center; justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #2E6FFF 0%, #1C54D6 100%);
  color: #fff;
  font-size: 16px; font-weight: 600;
  box-shadow: var(--shadow-btn);
  transition: all var(--transition);
  border: none;
}
.btn-main:hover { color: #fff; filter: brightness(1.12); box-shadow: 0 10px 40px rgba(46,111,255,0.6); transform: translateY(-2px); }
.btn-main:active { transform: translateY(0); box-shadow: 0 6px 20px rgba(46,111,255,0.4); }
.btn-sm { min-height: 40px; padding: 0 20px; font-size: 14px; border-radius: 999px; }
.btn-ghost {
  display: inline-flex;
  align-items: center; justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text-1);
  font-size: 15px; font-weight: 500;
  transition: all var(--transition);
}
.btn-ghost:hover { border-color: rgba(41,211,208,0.6); background: rgba(255,255,255,0.12); color: var(--text-1); transform: translateY(-2px); }
.dock-burger { display: none; width: 44px; height: 44px; border-radius: 50%; flex-direction: column; align-items: center; justify-content: center; gap: 5px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.16); }
.dock-burger span { width: 18px; height: 2px; background: var(--text-1); border-radius: 2px; transition: all 0.3s; }
.dock-search {
  position: absolute;
  top: calc(100% + 12px);
  left: 0; right: 0;
  background: rgba(9,13,26,0.95);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 16px;
  display: none;
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
}
.dock-search.open { display: block; }
.dock-search form { display: flex; gap: 10px; }
.dock-search input {
  flex: 1;
  height: 44px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 0 16px;
  color: var(--text-1);
  font-size: 15px;
  outline: none;
  transition: all var(--transition);
}
.dock-search input:focus { border-color: rgba(46,111,255,0.4); box-shadow: 0 0 0 3px rgba(46,111,255,0.15); background: rgba(255,255,255,0.09); }
.dock-search input::placeholder { color: var(--text-3); }
.dock-search button {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2E6FFF 0%, #1C54D6 100%);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(46,111,255,0.3);
  transition: all var(--transition);
}
.dock-search button:hover { filter: brightness(1.12); }
@media (max-width: 1023px) {
  .dock-links { display: none; }
  .dock-burger { display: flex; }
  .dock-download-btn { display: none; }
}
@media (max-width: 767px) {
  .dock-wrap { top: 8px; width: calc(100% - 24px); }
  .dock-nav { height: 52px; padding: 0 12px 0 16px; border-radius: 16px; }
  .brand-text { font-size: 15px; }
  .dock-actions { gap: 8px; }
}
.mobile-menu {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(7,13,26,0.98);
  backdrop-filter: blur(24px);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a {
  font-size: 24px; font-weight: 600;
  color: var(--text-1);
  padding: 14px 24px;
  border-radius: 12px;
  transition: all var(--transition);
}
.mobile-menu a:hover { color: var(--primary-hover); background: rgba(255,255,255,0.06); }
.mobile-menu a.btn-main { margin-top: 12px; }
.mobile-close {
  position: absolute;
  top: 24px; right: 24px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-1);
  font-size: 18px;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 120px;
  font-size: 13px;
  color: var(--text-3);
}
.breadcrumb a { color: var(--text-2); }
.breadcrumb a:hover { color: var(--primary-hover); }
.breadcrumb .sep { color: rgba(255,255,255,0.25); }
.breadcrumb .current {
  color: var(--text-2);
  max-width: 320px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* ===== 文章头部 ===== */
.article-header {
  padding: 40px 0 8px;
  max-width: 800px;
}
.article-header h1 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.3px;
  color: var(--text-1);
  margin-bottom: 16px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-3);
}
.article-meta .dot { color: rgba(255,255,255,0.3); }
.article-meta i { margin-right: 4px; font-size: 12px; }

/* ===== 文章正文容器 ===== */
.article-body {
  max-width: 800px;
  padding-top: 16px;
  padding-bottom: 64px;
}
.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: #D6DFEA;
}
.article-content h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-1);
  margin: 56px 0 20px;
  padding-top: 24px;
  letter-spacing: -0.3px;
  line-height: 1.3;
  position: relative;
}
.article-content h2::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 1px;
  background: linear-gradient(90deg, rgba(46,111,255,0.4), rgba(46,111,255,0.06) 60%, transparent);
}
.article-content h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-1);
  margin: 40px 0 16px;
  line-height: 1.4;
}
.article-content p {
  margin: 0 0 1.4em;
  color: #D6DFEA;
}
.article-content a {
  color: var(--primary-hover);
  border-bottom: 1px solid rgba(46,111,255,0.3);
  transition: border-color var(--transition);
}
.article-content a:hover { border-bottom-color: var(--primary-hover); }
.article-content blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  border-left: 3px solid var(--primary);
  background: rgba(46,111,255,0.06);
  border-radius: 0 12px 12px 0;
  color: rgba(232,238,247,0.8);
}
.article-content img {
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.08);
  margin: 24px 0;
  width: 100%;
  height: auto;
}
.article-content figure {
  margin: 24px 0;
}
.article-content figure img { margin: 0; }
.article-content figcaption {
  text-align: center;
  font-size: 12px;
  color: var(--text-3);
  padding-top: 10px;
}
.article-content pre {
  background: #0A0F1A;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 20px;
  overflow-x: auto;
  font-family: var(--font-num);
  font-size: 14px;
  line-height: 1.7;
  margin: 24px 0;
  color: #B7C5D9;
}
.article-content code {
  font-family: var(--font-num);
  font-size: 14px;
  background: rgba(255,255,255,0.08);
  padding: 2px 6px;
  border-radius: 4px;
  color: #B7C5D9;
}
.article-content pre code {
  background: none;
  padding: 0;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.6;
}
.article-content table th,
.article-content table td {
  border: 1px solid rgba(255,255,255,0.12);
  padding: 12px 16px;
  text-align: left;
}
.article-content table th {
  background: rgba(255,255,255,0.06);
  font-weight: 600;
  color: var(--text-1);
  font-size: 14px;
}
.article-content table tr:hover td {
  background: rgba(255,255,255,0.02);
}
.article-content ul,
.article-content ol {
  margin: 0 0 1.4em;
  padding-left: 1.5em;
}
.article-content li {
  margin-bottom: 8px;
  line-height: 1.8;
}
.article-content hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, rgba(255,255,255,0.15), rgba(255,255,255,0.03));
  margin: 40px 0;
}

/* ===== 标签行 ===== */
.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 28px 0 8px;
  max-width: 800px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: rgba(230,51,109,0.12);
  color: #FF6B94;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  transition: all var(--transition);
}
.tag:hover { background: rgba(230,51,109,0.22); color: #FF8AA8; }
.tag-cyan {
  background: rgba(41,211,208,0.12);
  color: #5EE3E0;
}
.tag-cyan:hover { background: rgba(41,211,208,0.22); color: #7BF0ED; }

/* ===== 上一篇 / 下一篇 ===== */
.prev-next-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 800px;
  padding: 32px 0 8px;
}
.prev-next-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 24px;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.12);
  transition: all var(--transition);
  overflow: hidden;
}
.prev-next-card:hover {
  transform: translateY(-4px);
  border-color: rgba(46,111,255,0.4);
  box-shadow: 0 12px 40px rgba(0,0,0,0.5), 0 0 40px rgba(46,111,255,0.15);
}
.prev-next-label {
  font-size: 12px;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 6px;
}
.prev-next-label i { font-size: 11px; }
.prev-next-card.next .prev-next-label { justify-content: flex-end; }
.prev-next-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}
.prev-next-card:hover .prev-next-title { color: var(--primary-hover); }
.prev-next-card.next { text-align: right; }
.prev-next-card.next .prev-next-label { flex-direction: row-reverse; }

/* ===== 相关推荐 ===== */
.related-section { padding: 40px 0 64px; }
.related-section .container { max-width: 800px; }
.related-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.related-head h2 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.related-head h2::before {
  content: "";
  width: 32px; height: 1px;
  background: rgba(255,255,255,0.2);
  position: relative;
}
.related-head h2::before {
  content: "";
  width: 32px;
  height: 8px;
  background: linear-gradient(90deg, rgba(255,255,255,0.2), transparent);
  border-radius: 4px;
  display: inline-block;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.12);
  overflow: hidden;
  transition: all var(--transition);
}
.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(46,111,255,0.4);
  box-shadow: 0 12px 40px rgba(0,0,0,0.5), 0 0 40px rgba(46,111,255,0.15);
}
.related-card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.related-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .related-card-image img { transform: scale(1.05); }
.related-card-body { padding: 16px 16px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.related-card-meta { font-size: 12px; color: var(--text-3); }
.related-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 46px;
  transition: color var(--transition);
}
.related-card:hover .related-card-title { color: var(--primary-hover); }

/* ===== 文章底部 CTA ===== */
.article-cta {
  padding: 8px 0 80px;
}
.cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 40px 48px;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.12);
  position: relative;
  overflow: hidden;
  max-width: 800px;
  margin-inline: auto;
}
.cta-card::before {
  content: "";
  position: absolute;
  top: -60%; right: -10%;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(46,111,255,0.15), transparent 70%);
  pointer-events: none;
}
.cta-card-content { position: relative; z-index: 1; flex: 1; }
.cta-card-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}
.cta-card-content p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}
.cta-card .btn-main { position: relative; z-index: 1; flex-shrink: 0; }

/* ===== 未找到 ===== */
.not-found {
  text-align: center;
  padding: 80px 24px;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border: 1px dashed rgba(255,255,255,0.2);
  border-radius: var(--radius-lg);
  max-width: 800px;
  margin-inline: auto;
}
.not-found i {
  font-size: 48px;
  color: var(--text-3);
  margin-bottom: 20px;
  display: block;
}
.not-found p { font-size: 20px; font-weight: 600; color: var(--text-1); margin-bottom: 8px; }
.not-found .sub { font-size: 14px; color: var(--text-3); margin-bottom: 28px; }

/* ===== 页脚 ===== */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 0;
  position: relative;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand-block { display: flex; flex-direction: column; gap: 16px; }
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-1);
}
.footer-desc { font-size: 14px; color: var(--text-3); line-height: 1.7; max-width: 280px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-2);
  transition: all var(--transition);
}
.footer-social a:hover { background: rgba(46,111,255,0.2); border-color: rgba(46,111,255,0.4); color: var(--primary-hover); transform: translateY(-2px); }
.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 14px;
  color: var(--text-2);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--primary-hover); }
.footer-contact { list-style: none; display: flex; flex-direction: column; gap: 12px; font-size: 14px; color: var(--text-2); }
.footer-contact i { width: 18px; margin-right: 8px; color: var(--text-3); font-size: 13px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: var(--text-3);
}
.footer-copyright, .footer-icp { font-size: 13px; }

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .prev-next-grid { grid-template-columns: 1fr; }
  .cta-card { flex-direction: column; text-align: center; padding: 32px 24px; }
  .article-cta .container { max-width: 800px; }
}
@media (max-width: 767px) {
  body { font-size: 15px; }
  .breadcrumb { padding-top: 96px; }
  .article-header { padding-top: 28px; }
  .article-header h1 { font-size: 26px; }
  .article-body { padding-bottom: 40px; }
  .article-content { font-size: 15px; line-height: 1.75; }
  .article-content h2 { font-size: 22px; margin: 40px 0 16px; }
  .article-content h3 { font-size: 19px; }
  .related-grid { grid-template-columns: 1fr; }
  .related-card-image { aspect-ratio: 16 / 9; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; gap: 8px; }
  .cta-card { padding: 28px 20px; gap: 20px; }
  .cta-card-content h2 { font-size: 20px; }
  .prev-next-card { padding: 16px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* roulang page: category1 */
:root{
  --color-bg:#070D1A;
  --color-bg-alt:#0B1220;
  --primary:#2E6FFF;
  --primary-light:#4D85FF;
  --primary-dark:#1C54D6;
  --accent-1:#E6336D;
  --accent-2:#29D3D0;
  --text-1:#E8EEF7;
  --text-2:#9AA9BD;
  --text-3:#65748B;
  --glass-bg:linear-gradient(165deg,rgba(255,255,255,0.09),rgba(255,255,255,0.02));
  --glass-border:rgba(255,255,255,0.12);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 32px rgba(0,0,0,0.35);
  --spacing-section:96px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-en:"Inter","SF Pro Display","DIN Alternate",sans-serif;
  --transition:200ms ease;
  --z-dock:1000;
  --z-drawer:1100;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--color-bg);
  color:var(--text-1);
  font-family:var(--font-sans);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:'';
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  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:48px 48px;
}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--primary-light)}
img{max-width:100%;display:block}
button{font-family:inherit;border:none;cursor:pointer}
input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section-pad{padding:var(--spacing-section) 0}

/* 全局主按钮 */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:12px;
  background:linear-gradient(135deg,#2E6FFF 0%,#1C54D6 100%);
  color:#fff;font-size:16px;font-weight:600;letter-spacing:0.3px;
  box-shadow:0 8px 30px rgba(46,111,255,0.45),inset 0 1px 0 rgba(255,255,255,0.25);
  transition:transform 200ms ease,box-shadow 200ms ease,filter 200ms ease;
}
.btn-main:hover{
  color:#fff;filter:brightness(1.12);transform:translateY(-2px);
  box-shadow:0 10px 40px rgba(46,111,255,0.6);
}
.btn-main:active{transform:translateY(0);box-shadow:0 6px 20px rgba(46,111,255,0.4)}
.btn-main:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px}
.btn-main.btn-sm{min-height:40px;padding:0 20px;font-size:14px;border-radius:10px}
.btn-main.btn-lg{min-height:56px;padding:0 40px;font-size:18px;border-radius:14px}
.btn-glass{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:12px;
  background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.16);
  color:var(--text-1);font-size:16px;font-weight:500;
  transition:background 200ms ease,border-color 200ms ease,color 200ms ease,transform 200ms ease;
}
.btn-glass:hover{
  background:rgba(255,255,255,0.12);border-color:rgba(41,211,208,0.6);
  color:var(--text-1);transform:translateY(-2px);
}
.btn-glass:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:4px;
  padding:4px 10px;border-radius:6px;font-size:12px;font-weight:500;line-height:1.5;
}
.tag-accent{background:rgba(230,51,109,0.12);color:#FF6B94}
.tag-cyan{background:rgba(41,211,208,0.12);color:#5EE3E0}
.tag-blue{background:rgba(46,111,255,0.14);color:#7C9FFF}

/* ===== Dock 导航 ===== */
.dock-wrap{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:min(1200px,calc(100% - 32px));height:60px;z-index:var(--z-dock);
}
.dock-nav{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  height:100%;padding:0 14px;border-radius:999px;
  background:rgba(9,13,26,0.72);
  -webkit-backdrop-filter:blur(20px) saturate(160%);
  backdrop-filter:blur(20px) saturate(160%);
  border:1px solid rgba(255,255,255,0.10);
  box-shadow:0 12px 40px rgba(0,0,0,0.45),inset 0 1px 0 rgba(255,255,255,0.12);
}
.dock-brand{display:flex;align-items:center;gap:10px;min-height:44px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:8px;
  background:linear-gradient(135deg,#2E6FFF,#1C54D6);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:#fff;
  box-shadow:0 4px 14px rgba(46,111,255,0.4);
}
.brand-text{font-size:16px;font-weight:600;color:var(--text-1);letter-spacing:0.5px;white-space:nowrap}
.dock-links{display:flex;align-items:center;gap:4px;margin:0 auto 0 32px}
.dock-link{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color 200ms ease;
}
.dock-link:hover{color:var(--text-1)}
.dock-link::after{
  content:'';position:absolute;left:50%;bottom:2px;transform:translateX(-50%) scaleX(0);
  width:16px;height:2px;border-radius:2px;background:var(--accent-2);
  transition:transform 200ms ease;
}
.dock-link:hover::after,.dock-link.active::after{transform:translateX(-50%) scaleX(1)}
.dock-link.active{color:var(--primary-light)}
.dock-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.dock-search-btn{
  width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.12);
  color:var(--text-2);font-size:15px;display:flex;align-items:center;justify-content:center;
  transition:all 200ms ease;
}
.dock-search-btn:hover{color:var(--text-1);border-color:var(--primary)}
.dock-search-btn:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px}
.dock-download-btn{white-space:nowrap}
.dock-burger{
  display:none;width:40px;height:40px;border-radius:10px;
  background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.12);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.dock-burger span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:all 200ms ease}
.dock-burger:hover span{background:var(--primary-light)}
.dock-burger:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px}
.dock-search{
  position:absolute;top:calc(100% + 12px);left:0;right:0;
  padding:16px;border-radius:16px;background:rgba(9,13,26,0.96);
  border:1px solid rgba(255,255,255,0.10);box-shadow:0 16px 48px rgba(0,0,0,0.5);
  display:none;
}
.dock-search.open{display:block}
.dock-search form{display:flex;gap:10px}
.dock-search input{
  flex:1;height:46px;padding:0 16px;border-radius:10px;
  background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);
  color:var(--text-1);font-size:15px;transition:border-color 200ms ease,box-shadow 200ms ease;
}
.dock-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,111,255,0.15)}
.dock-search button{
  width:46px;height:46px;border-radius:10px;background:var(--primary);color:#fff;font-size:15px;
  transition:background 200ms ease;
}
.dock-search button:hover{background:var(--primary-light)}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:var(--z-drawer);
  background:rgba(9,13,26,0.97);display:none;flex-direction:column;
  padding:24px 24px 40px;
}
.mobile-drawer.open{display:flex}
.mobile-drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px}
.mobile-drawer-close{
  width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.12);
  color:var(--text-1);font-size:18px;display:flex;align-items:center;justify-content:center;
}
.mobile-drawer-links{display:flex;flex-direction:column;gap:4px;flex:1}
.mobile-drawer-links a{
  display:flex;align-items:center;min-height:52px;padding:0 12px;border-radius:12px;
  font-size:24px;font-weight:600;color:var(--text-1);
}
.mobile-drawer-links a:hover{background:rgba(255,255,255,0.06);color:var(--primary-light)}
.mobile-drawer-links a.active{color:var(--primary-light)}
.mobile-drawer .btn-main{margin-top:16px}

/* ===== 横幅 ===== */
.banner{
  position:relative;min-height:400px;display:flex;align-items:center;
  padding:120px 0 64px;
  background:
    linear-gradient(to bottom,rgba(7,13,26,0.15),rgba(7,13,26,0.88)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow:hidden;
}
.banner::before{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,0.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.04) 1px,transparent 1px);
  background-size:48px 48px;
}
.banner::after{
  content:'';position:absolute;top:-120px;left:-80px;width:480px;height:480px;
  background:radial-gradient(circle,rgba(46,111,255,0.22),transparent 70%);pointer-events:none;
}
.banner-content{max-width:680px}
.banner-content .tag{margin-bottom:20px}
.banner-content h1{
  font-size:52px;font-weight:700;line-height:1.15;letter-spacing:-0.5px;
  color:var(--text-1);margin-bottom:16px;
}
.banner-content p{
  font-size:16px;line-height:1.8;color:var(--text-2);
  max-width:560px;
}
.banner-meta{
  display:flex;align-items:center;gap:20px;margin-top:28px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.banner-meta span{display:inline-flex;align-items:center;gap:6px}

/* ===== 左右分栏 ===== */
.split-section{padding:96px 0 64px;position:relative;z-index:1}
.split-grid{display:grid;grid-template-columns:40% 60%;gap:40px;align-items:start}
.guide-card{
  position:sticky;top:100px;border-radius:16px;padding:32px 28px;
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,0.12);
  clip-path:polygon(24px 0,100% 0,100% 100%,0 100%,0 24px);
}
.guide-badge{display:inline-block;padding:4px 12px;border-radius:6px;background:rgba(46,111,255,0.14);color:#7C9FFF;font-size:12px;font-weight:500;margin-bottom:18px}
.guide-card h2{font-size:24px;font-weight:700;line-height:1.35;margin-bottom:16px;letter-spacing:-0.3px}
.guide-card p{font-size:15px;line-height:1.8;color:var(--text-2);margin-bottom:24px}
.guide-card .btn-main{width:100%}
.guide-meta{display:flex;align-items:center;gap:14px;margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,0.08);font-size:13px;color:var(--text-3)}
.guide-meta i{color:var(--accent-2);font-size:15px}

/* 右栏产品列表 */
.product-list{display:flex;flex-direction:column;gap:20px}
.product-item{
  display:flex;gap:20px;align-items:flex-start;
  padding:28px 24px;border-radius:16px;
  background:var(--glass-bg);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:0 8px 32px rgba(0,0,0,0.25),inset 0 1px 0 rgba(255,255,255,0.12);
  transition:transform 200ms ease,border-color 200ms ease,box-shadow 200ms ease;
}
.product-item:hover{
  transform:translateY(-4px);border-color:rgba(46,111,255,0.4);
  box-shadow:0 0 40px rgba(46,111,255,0.15),inset 0 1px 0 rgba(255,255,255,0.12);
}
.product-index{
  flex-shrink:0;width:48px;height:48px;border-radius:12px;
  background:rgba(46,111,255,0.14);border:1px solid rgba(46,111,255,0.2);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-en);font-size:16px;font-weight:700;color:var(--primary-light);
}
.product-body{flex:1;min-width:0}
.product-tags{display:flex;gap:8px;margin-bottom:8px}
.product-body h3{font-size:20px;font-weight:600;margin-bottom:8px;letter-spacing:-0.2px}
.product-body p{font-size:15px;line-height:1.75;color:var(--text-2);margin-bottom:12px}
.product-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--primary-light)}
.product-link:hover{color:var(--accent-2);gap:8px}
.product-link i{font-size:12px}

/* ===== 功能亮点 ===== */
.features-section{padding:64px 0 96px;background:var(--color-bg-alt);position:relative;z-index:1}
.features-section .container{position:relative;z-index:1}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
.section-head .section-title-wrap{display:flex;align-items:center;gap:16px}
.section-no{font-family:var(--font-en);font-size:16px;font-weight:700;color:var(--accent-1);letter-spacing:1px}
.section-title{font-size:32px;font-weight:700;letter-spacing:-0.3px;line-height:1.25;color:var(--text-1)}
.section-desc{font-size:15px;color:var(--text-2);max-width:440px;line-height:1.7}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{
  padding:32px 28px;border-radius:16px;
  background:var(--glass-bg);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,0.12);
  transition:transform 200ms ease,border-color 200ms ease;
}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(41,211,208,0.4)}
.feature-icon{
  width:48px;height:48px;border-radius:12px;margin-bottom:18px;
  background:linear-gradient(135deg,rgba(46,111,255,0.2),rgba(41,211,208,0.12));
  border:1px solid rgba(46,111,255,0.2);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--accent-2);
}
.feature-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.feature-card p{font-size:14px;line-height:1.8;color:var(--text-2)}

/* ===== 工作流程 ===== */
.workflow-section{padding:96px 0;position:relative;z-index:1}
.workflow-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:8px}
.step-card{
  position:relative;padding:28px 20px 24px;border-radius:16px;text-align:left;
  background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);
  transition:all 200ms ease;
}
.step-card:hover{border-color:rgba(46,111,255,0.35);background:rgba(46,111,255,0.06);transform:translateY(-3px)}
.step-num{
  font-family:var(--font-en);font-size:14px;font-weight:700;color:var(--accent-2);
  letter-spacing:1px;display:inline-block;margin-bottom:12px;
}
.step-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.step-card p{font-size:13px;color:var(--text-3);line-height:1.7}
.step-arrow{
  position:absolute;top:28px;right:-17px;color:rgba(255,255,255,0.2);font-size:14px;z-index:2;
}

/* ===== FAQ ===== */
.faq-section{padding:96px 0;background:var(--color-bg-alt);position:relative;z-index:1}
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:16px;background:var(--glass-bg);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,0.12);
  overflow:hidden;transition:border-color 200ms ease;
}
.faq-item[open]{border-color:rgba(46,111,255,0.4)}
.faq-summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:0 20px;cursor:pointer;list-style:none;font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-summary::-webkit-details-marker{display:none}
.faq-summary .faq-icon{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.2);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--text-2);transition:transform 200ms ease,border-color 200ms ease,color 200ms ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:var(--primary);color:var(--primary-light)}
.faq-content{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ===== CTA ===== */
.cta-section{
  position:relative;padding:96px 0;text-align:center;
  background:
    linear-gradient(rgba(7,13,26,0.88),rgba(7,13,26,0.88)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;bottom:-60px;right:-40px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(230,51,109,0.15),transparent 70%);
}
.cta-inner{max-width:680px;margin:0 auto;position:relative;z-index:1}
.cta-inner h2{font-size:34px;font-weight:700;letter-spacing:-0.3px;line-height:1.3;margin-bottom:14px}
.cta-inner p{font-size:16px;color:var(--text-2);margin-bottom:32px;line-height:1.8}
.cta-inner .btn-main{margin-bottom:16px}
.cta-note{font-size:13px;color:var(--text-3)}

/* ===== 页脚 ===== */
.footer{background:var(--color-bg-alt);border-top:1px solid rgba(255,255,255,0.06);padding:64px 0 0;position:relative;z-index:1}
.footer::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,0.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.02) 1px,transparent 1px);
  background-size:48px 48px;
}
.footer .container{position:relative;z-index:1}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:48px;
}
.footer-brand{margin-bottom:12px!important}
.footer-brand .brand-mark{width:36px;height:36px;font-size:16px}
.footer-brand span{font-size:18px;font-weight:600;color:var(--text-1)}
.footer-desc{font-size:14px;color:var(--text-3);line-height:1.7;max-width:260px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:40px;height:40px;border-radius:10px;
  background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.08);
  display:flex;align-items:center;justify-content:center;color:var(--text-2);font-size:16px;
  transition:all 200ms ease;
}
.footer-social a:hover{color:var(--primary-light);border-color:var(--primary);background:rgba(46,111,255,0.12)}
.footer-col-title{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text-1)}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color 200ms ease;padding:2px 0;display:inline-block}
.footer-links a:hover{color:var(--primary-light)}
.footer-contact{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2)}
.footer-contact i{width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,0.05);display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--accent-2);flex-shrink:0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.06);padding:20px 0;
}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-copyright{font-size:13px;color:var(--text-3)}
.footer-icp{font-size:13px;color:var(--text-3)}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .dock-links{display:none}
  .dock-burger{display:flex}
  .dock-download-btn{display:none}
  .split-grid{grid-template-columns:1fr;gap:32px}
  .guide-card{position:static}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .workflow-steps{grid-template-columns:repeat(3,1fr)}
  .step-arrow{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--spacing-section:48px}
  .dock-wrap{top:8px;width:calc(100% - 24px)}
  .dock-nav{border-radius:16px;padding:0 12px}
  .dock-links{display:none}
  .banner{min-height:420px;padding:96px 0 48px}
  .banner-content h1{font-size:34px}
  .banner-content p{font-size:15px}
  .split-section{padding:56px 0 40px}
  .split-grid{grid-template-columns:1fr;gap:28px}
  .guide-card{padding:24px 20px;clip-path:polygon(20px 0,100% 0,100% 100%,0 100%,0 20px)}
  .guide-card h2{font-size:20px}
  .product-item{flex-direction:column;gap:14px;padding:20px 16px}
  .product-index{width:40px;height:40px;font-size:14px}
  .feature-grid{grid-template-columns:1fr}
  .features-section{padding:48px 0}
  .section-title{font-size:26px}
  .section-head{margin-bottom:28px;flex-direction:column;align-items:flex-start;gap:12px}
  .workflow-section{padding:48px 0}
  .workflow-steps{grid-template-columns:1fr}
  .faq-section{padding:48px 0}
  .faq-summary{font-size:15px;padding:0 16px;min-height:56px}
  .faq-content{padding:0 16px 16px;font-size:14px}
  .cta-section{padding:56px 0}
  .cta-inner h2{font-size:26px}
  .cta-inner p{font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .banner-content h1{font-size:30px}
  .btn-main.btn-lg{padding:0 24px;font-size:16px;width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root {
        --color-bg: #070D1A;
        --color-bg-alt: #0B1220;
        --glass-bg: linear-gradient(165deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.02));
        --glass-border: rgba(255, 255, 255, 0.12);
        --glass-blur: 16px;
        --primary: #2E6FFF;
        --primary-hover: #4D85FF;
        --primary-active: #1C54D6;
        --accent-1: #E6336D;
        --accent-2: #29D3D0;
        --text-1: #E8EEF7;
        --text-2: #9AA9BD;
        --text-3: #65748B;
        --success: #3BCB7D;
        --warning: #F5B84B;
        --danger: #F45858;
        --radius: 16px;
        --radius-sm: 12px;
        --radius-xs: 8px;
        --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
        --shadow-glow: 0 8px 30px rgba(46, 111, 255, 0.45);
        --spacing-section: 96px;
        --spacing-section-md: 64px;
        --spacing-section-sm: 48px;
        --font-size-h1: 48px;
        --font-size-h2: 32px;
        --font-size-h3: 20px;
        --font-size-body: 16px;
        --font-size-meta: 13px;
        --font-family-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        --font-family-en: "Inter", "SF Pro Display", "DIN Alternate", sans-serif;
        --z-header: 100;
        --z-drawer: 200;
        --transition: 200ms ease;
    }

    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
        scroll-padding-top: 100px;
        -webkit-text-size-adjust: 100%;
    }
    body {
        font-family: var(--font-family-cn);
        font-size: var(--font-size-body);
        line-height: 1.7;
        color: var(--text-1);
        background-color: var(--color-bg);
        background-image:
            linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
        background-size: 48px 48px;
        -webkit-font-smoothing: antialiased;
    }
    body.no-scroll {
        overflow: hidden;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: color var(--transition);
    }
    a:hover {
        color: var(--primary-hover);
    }
    img {
        max-width: 100%;
        display: block;
    }
    button {
        font-family: inherit;
        cursor: pointer;
        border: none;
        background: none;
    }
    input {
        font-family: inherit;
    }
    ul,
    ol {
        list-style: none;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }
    :focus-visible {
        outline: 2px solid var(--accent-2);
        outline-offset: 3px;
    }
    ::selection {
        background: rgba(46, 111, 255, 0.35);
        color: #fff;
    }

    /* ========== Dock 导航 ========== */
    .dock-wrap {
        position: fixed;
        top: 16px;
        left: 50%;
        transform: translateX(-50%);
        width: min(1200px, calc(100% - 32px));
        z-index: var(--z-header);
    }
    .dock-nav {
        display: flex;
        align-items: center;
        height: 60px;
        padding: 0 18px;
        border-radius: 999px;
        background: rgba(9, 13, 26, 0.72);
        -webkit-backdrop-filter: blur(20px) saturate(160%);
        backdrop-filter: blur(20px) saturate(160%);
        border: 1px solid rgba(255, 255, 255, 0.10);
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.12);
    }
    .dock-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-right: 24px;
        flex-shrink: 0;
    }
    .brand-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: linear-gradient(135deg, var(--primary), var(--primary-active));
        color: #fff;
        font-size: 17px;
        font-weight: 700;
        box-shadow: 0 4px 16px rgba(46, 111, 255, 0.4);
    }
    .brand-text {
        font-size: 16px;
        font-weight: 600;
        color: var(--text-1);
        letter-spacing: 0.5px;
    }
    .dock-links {
        display: flex;
        align-items: center;
        gap: 4px;
        margin-right: auto;
        margin-left: auto;
    }
    .dock-link {
        position: relative;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 44px;
        padding: 0 18px;
        border-radius: 22px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-2);
        white-space: nowrap;
        transition: color var(--transition), background var(--transition);
    }
    .dock-link:hover {
        color: var(--text-1);
        background: rgba(255, 255, 255, 0.06);
    }
    .dock-link.active {
        color: var(--text-1);
        background: rgba(46, 111, 255, 0.14);
    }
    .dock-link.active::after {
        content: "";
        position: absolute;
        bottom: 6px;
        left: 50%;
        transform: translateX(-50%);
        width: 16px;
        height: 2px;
        border-radius: 2px;
        background: var(--accent-2);
        box-shadow: 0 0 8px rgba(41, 211, 208, 0.6);
    }
    .dock-actions {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-left: 24px;
        flex-shrink: 0;
    }
    .dock-search-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.14);
        color: var(--text-2);
        font-size: 15px;
        transition: all var(--transition);
    }
    .dock-search-btn:hover {
        color: var(--text-1);
        border-color: var(--primary);
        box-shadow: 0 0 16px rgba(46, 111, 255, 0.2);
    }
    .btn-main {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 52px;
        padding: 0 28px;
        border-radius: 12px;
        background: linear-gradient(135deg, #2E6FFF 0%, #1C54D6 100%);
        box-shadow: 0 8px 30px rgba(46, 111, 255, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.25);
        color: #fff;
        font-size: 16px;
        font-weight: 600;
        letter-spacing: 0.3px;
        transition: all var(--transition);
    }
    .btn-main:hover {
        filter: brightness(1.12);
        box-shadow: 0 10px 40px rgba(46, 111, 255, 0.6);
        transform: translateY(-2px);
        color: #fff;
    }
    .btn-main:active {
        transform: translateY(0);
        box-shadow: 0 8px 24px rgba(46, 111, 255, 0.4);
    }
    .btn-sm {
        height: 40px;
        padding: 0 20px;
        font-size: 14px;
        border-radius: 20px;
    }
    .dock-download-btn {
        display: inline-flex;
    }
    .dock-burger {
        display: none;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.14);
        gap: 4px;
    }
    .dock-burger span {
        display: block;
        width: 16px;
        height: 2px;
        border-radius: 2px;
        background: var(--text-1);
        transition: all var(--transition);
    }
    .dock-burger.open span:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }
    .dock-burger.open span:nth-child(2) {
        opacity: 0;
    }
    .dock-burger.open span:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }

    /* Dock 搜索 */
    .dock-search {
        position: absolute;
        top: calc(100% + 12px);
        left: 0;
        right: 0;
        display: none;
        padding: 12px;
        border-radius: 16px;
        background: rgba(9, 13, 26, 0.92);
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        border: 1px solid rgba(255, 255, 255, 0.12);
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    }
    .dock-search.open {
        display: block;
    }
    .dock-search form {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .dock-search input {
        flex: 1;
        height: 44px;
        padding: 0 14px;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.12);
        color: var(--text-1);
        font-size: 15px;
        outline: none;
        transition: all var(--transition);
    }
    .dock-search input:focus {
        border-color: rgba(46, 111, 255, 0.6);
        box-shadow: 0 0 0 3px rgba(46, 111, 255, 0.15);
        background: rgba(255, 255, 255, 0.09);
    }
    .dock-search input::placeholder {
        color: var(--text-3);
    }
    .dock-search button {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 10px;
        background: linear-gradient(135deg, #2E6FFF, #1C54D6);
        color: #fff;
        font-size: 15px;
        transition: all var(--transition);
    }
    .dock-search button:hover {
        filter: brightness(1.12);
    }

    /* 移动端抽屉 */
    .drawer-mask {
        position: fixed;
        inset: 0;
        background: rgba(7, 13, 26, 0.7);
        -webkit-backdrop-filter: blur(8px);
        backdrop-filter: blur(8px);
        z-index: var(--z-drawer);
        display: none;
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    .drawer-mask.show {
        display: block;
        opacity: 1;
    }
    .drawer-panel {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: min(340px, 86vw);
        background: #0B1220;
        border-left: 1px solid rgba(255, 255, 255, 0.08);
        z-index: calc(var(--z-drawer) + 1);
        padding: 28px 24px;
        display: flex;
        flex-direction: column;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
    }
    .drawer-panel.open {
        transform: translateX(0);
    }
    .drawer-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 32px;
    }
    .drawer-close {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.08);
        color: var(--text-1);
        font-size: 18px;
        transition: background var(--transition);
    }
    .drawer-close:hover {
        background: rgba(255, 255, 255, 0.14);
    }
    .drawer-links {
        display: flex;
        flex-direction: column;
        gap: 4px;
        margin-bottom: 32px;
    }
    .drawer-links a {
        display: flex;
        align-items: center;
        height: 52px;
        padding: 0 16px;
        border-radius: 12px;
        font-size: 18px;
        font-weight: 600;
        color: var(--text-1);
        transition: background var(--transition);
    }
    .drawer-links a:hover {
        background: rgba(255, 255, 255, 0.06);
    }
    .drawer-links a.active {
        background: rgba(46, 111, 255, 0.16);
        color: var(--primary-hover);
    }
    .drawer-cta {
        margin-top: auto;
    }

    /* ========== 页面顶部留白 ========== */
    .page-top-space {
        height: 96px;
    }

    /* ========== Banner ========== */
    .page-banner {
        position: relative;
        min-height: 420px;
        display: flex;
        align-items: center;
        overflow: hidden;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .banner-bg {
        position: absolute;
        inset: 0;
        background-size: cover;
        background-position: center;
        z-index: 0;
    }
    .banner-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(7, 13, 26, 0.35) 0%, rgba(7, 13, 26, 0.85) 100%);
        z-index: 1;
    }
    .banner-inner {
        position: relative;
        z-index: 2;
        padding-top: 60px;
        padding-bottom: 60px;
        max-width: 800px;
    }
    .banner-tag {
        display: inline-flex;
        align-items: center;
        padding: 5px 14px;
        border-radius: 6px;
        background: rgba(230, 51, 109, 0.14);
        border: 1px solid rgba(230, 51, 109, 0.25);
        color: #FF6B94;
        font-size: 13px;
        font-weight: 500;
        letter-spacing: 1px;
        margin-bottom: 20px;
    }
    .page-banner h1 {
        font-size: var(--font-size-h1);
        font-weight: 700;
        letter-spacing: -0.5px;
        line-height: 1.15;
        color: var(--text-1);
        margin-bottom: 16px;
    }
    .banner-desc {
        font-size: 17px;
        line-height: 1.8;
        color: var(--text-2);
        max-width: 560px;
        margin-bottom: 28px;
    }
    .banner-meta {
        display: flex;
        align-items: center;
        gap: 16px;
        font-size: 13px;
        color: var(--text-3);
        flex-wrap: wrap;
    }
    .banner-meta i {
        margin-right: 4px;
        color: var(--accent-2);
    }

    /* ========== 锚点目录条 ========== */
    .anchor-bar {
        position: sticky;
        top: 92px;
        z-index: 50;
        background: rgba(7, 13, 26, 0.85);
        -webkit-backdrop-filter: blur(14px);
        backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        padding: 14px 0;
    }
    .anchor-bar-inner {
        display: flex;
        align-items: center;
        gap: 10px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .anchor-bar-inner::-webkit-scrollbar {
        display: none;
    }
    .anchor-link {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 40px;
        padding: 0 22px;
        border-radius: 20px;
        border: 1px solid rgba(255, 255, 255, 0.12);
        background: rgba(255, 255, 255, 0.04);
        color: var(--text-2);
        font-size: 14px;
        font-weight: 500;
        white-space: nowrap;
        transition: all var(--transition);
    }
    .anchor-link:hover {
        color: var(--accent-2);
        border-color: rgba(41, 211, 208, 0.5);
    }
    .anchor-link.active {
        color: var(--text-1);
        background: rgba(46, 111, 255, 0.18);
        border-color: rgba(46, 111, 255, 0.4);
        box-shadow: 0 0 20px rgba(46, 111, 255, 0.15);
    }

    /* ========== 通用 Section ========== */
    .section {
        padding: var(--spacing-section) 0;
    }
    .section-alt {
        background: rgba(255, 255, 255, 0.02);
        border-top: 1px solid rgba(255, 255, 255, 0.04);
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-head {
        max-width: 720px;
        margin-bottom: 56px;
    }
    .section-head.center {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }
    .section-head .pre-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-family: var(--font-family-en);
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 2px;
        color: var(--accent-2);
        margin-bottom: 12px;
    }
    .section-head .pre-label .line {
        display: inline-block;
        width: 32px;
        height: 1px;
        background: rgba(255, 255, 255, 0.2);
        position: relative;
    }
    .section-head .pre-label .line::before {
        content: "";
        position: absolute;
        left: 0;
        top: -2px;
        width: 6px;
        height: 1px;
        background: rgba(255, 255, 255, 0.2);
    }
    .section-head h2 {
        font-size: var(--font-size-h2);
        font-weight: 700;
        letter-spacing: -0.3px;
        line-height: 1.25;
        color: var(--text-1);
        margin-bottom: 16px;
    }
    .section-head p {
        font-size: 16px;
        color: var(--text-2);
        line-height: 1.8;
    }

    /* ========== 阶梯卡片矩阵 ========== */
    .solution-matrix {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 32px;
        align-items: start;
    }
    .solution-card {
        border-radius: var(--radius);
        background: var(--glass-bg);
        -webkit-backdrop-filter: blur(var(--glass-blur));
        backdrop-filter: blur(var(--glass-blur));
        border: 1px solid var(--glass-border);
        box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.12);
        overflow: hidden;
        transition: all var(--transition);
    }
    .solution-card:hover {
        transform: translateY(-4px);
        border-color: rgba(46, 111, 255, 0.4);
        box-shadow: 0 0 40px rgba(46, 111, 255, 0.15), 0 8px 32px rgba(0, 0, 0, 0.35);
    }
    .solution-card.offset {
        margin-top: 48px;
    }
    .solution-card .card-media {
        position: relative;
        aspect-ratio: 16 / 9;
        overflow: hidden;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .solution-card .card-media img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    .solution-card:hover .card-media img {
        transform: scale(1.04);
    }
    .card-body {
        padding: 24px;
    }
    .card-tag {
        display: inline-flex;
        align-items: center;
        padding: 4px 10px;
        border-radius: 6px;
        background: rgba(230, 51, 109, 0.12);
        color: #FF6B94;
        font-size: 12px;
        font-weight: 500;
        margin-bottom: 12px;
    }
    .card-body h3 {
        font-size: var(--font-size-h3);
        font-weight: 600;
        line-height: 1.4;
        color: var(--text-1);
        margin-bottom: 10px;
    }
    .card-body p {
        font-size: 15px;
        color: var(--text-2);
        line-height: 1.7;
        margin-bottom: 18px;
    }
    .card-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        font-weight: 500;
        color: var(--primary);
        transition: all var(--transition);
    }
    .card-link:hover {
        color: var(--accent-2);
        gap: 12px;
    }
    .card-link i {
        font-size: 13px;
    }

    /* ========== 数据亮点 ========== */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    .stat-card {
        text-align: center;
        padding: 32px 20px;
        border-radius: var(--radius);
        background: var(--glass-bg);
        -webkit-backdrop-filter: blur(var(--glass-blur));
        backdrop-filter: blur(var(--glass-blur));
        border: 1px solid var(--glass-border);
        box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.12);
        transition: all var(--transition);
    }
    .stat-card:hover {
        border-color: rgba(41, 211, 208, 0.4);
        transform: translateY(-4px);
    }
    .stat-number {
        font-family: var(--font-family-en);
        font-size: 42px;
        font-weight: 700;
        color: var(--text-1);
        line-height: 1.2;
        font-feature-settings: "tnum";
        margin-bottom: 8px;
    }
    .stat-number em {
        font-style: normal;
        color: var(--accent-2);
        font-size: 26px;
        margin-right: 2px;
    }
    .stat-label {
        font-size: 14px;
        color: var(--text-2);
    }

    /* ========== 流程时间线 ========== */
    .process-steps {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        position: relative;
    }
    .process-step {
        position: relative;
        padding: 28px 24px;
        border-radius: var(--radius);
        background: var(--glass-bg);
        -webkit-backdrop-filter: blur(var(--glass-blur));
        backdrop-filter: blur(var(--glass-blur));
        border: 1px solid var(--glass-border);
        box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.12);
        transition: all var(--transition);
    }
    .process-step:hover {
        border-color: rgba(46, 111, 255, 0.4);
        transform: translateY(-4px);
    }
    .step-num {
        font-family: var(--font-family-en);
        font-size: 28px;
        font-weight: 700;
        color: var(--accent-1);
        line-height: 1;
        margin-bottom: 14px;
        display: block;
    }
    .process-step h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--text-1);
        margin-bottom: 8px;
    }
    .process-step p {
        font-size: 14px;
        color: var(--text-2);
        line-height: 1.7;
    }
    .process-arrow {
        position: absolute;
        top: 50%;
        right: -20px;
        width: 16px;
        height: 16px;
        color: var(--text-3);
        font-size: 14px;
        transform: translateY(-50%);
        z-index: 2;
    }

    /* ========== FAQ ========== */
    .faq-list {
        max-width: 800px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .faq-item {
        border-radius: var(--radius);
        background: var(--glass-bg);
        -webkit-backdrop-filter: blur(var(--glass-blur));
        backdrop-filter: blur(var(--glass-blur));
        border: 1px solid var(--glass-border);
        box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.12);
        overflow: hidden;
        transition: all var(--transition);
    }
    .faq-item.active {
        border-color: rgba(46, 111, 255, 0.4);
        box-shadow: 0 0 30px rgba(46, 111, 255, 0.08), 0 8px 32px rgba(0, 0, 0, 0.35);
    }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        min-height: 56px;
        padding: 0 20px;
        text-align: left;
        font-size: 16px;
        font-weight: 600;
        color: var(--text-1);
        background: transparent;
        border: none;
        transition: color var(--transition);
    }
    .faq-question:hover {
        color: var(--primary-hover);
    }
    .faq-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 24px;
        height: 24px;
        border-radius: 50%;
        border: 1px solid rgba(255, 255, 255, 0.2);
        color: var(--text-2);
        font-size: 14px;
        transition: all var(--transition);
        flex-shrink: 0;
    }
    .faq-item.active .faq-icon {
        transform: rotate(45deg);
        border-color: var(--primary);
        color: var(--primary);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }
    .faq-answer-inner {
        padding: 0 20px 18px;
        font-size: 15px;
        color: var(--text-2);
        line-height: 1.7;
    }
    .faq-item.active .faq-answer {
        max-height: 500px;
    }

    /* ========== CTA ========== */
    .cta-block {
        position: relative;
        padding: 88px 0;
        overflow: hidden;
        text-align: center;
    }
    .cta-bg {
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-3.png');
        background-size: cover;
        background-position: center;
        z-index: 0;
    }
    .cta-overlay {
        position: absolute;
        inset: 0;
        background: rgba(7, 13, 26, 0.85);
        z-index: 1;
    }
    .cta-inner {
        position: relative;
        z-index: 2;
        max-width: 760px;
        margin: 0 auto;
    }
    .cta-inner h2 {
        font-size: 36px;
        font-weight: 700;
        letter-spacing: -0.3px;
        color: var(--text-1);
        margin-bottom: 16px;
        line-height: 1.25;
    }
    .cta-inner .cta-desc {
        font-size: 16px;
        color: var(--text-2);
        line-height: 1.8;
        margin-bottom: 36px;
    }
    .cta-buttons {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 16px;
        flex-wrap: wrap;
    }
    .btn-glass {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 52px;
        padding: 0 28px;
        border-radius: 12px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.16);
        color: var(--text-1);
        font-size: 16px;
        font-weight: 500;
        transition: all var(--transition);
    }
    .btn-glass:hover {
        border-color: rgba(41, 211, 208, 0.6);
        background: rgba(255, 255, 255, 0.12);
        color: var(--text-1);
    }

    /* ========== 页脚 ========== */
    .footer {
        background: var(--color-bg-alt);
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        padding: 72px 0 0;
        position: relative;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
        gap: 48px;
        padding-bottom: 56px;
    }
    .footer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 16px;
    }
    .footer-brand .brand-mark {
        width: 34px;
        height: 34px;
        font-size: 16px;
        border-radius: 8px;
    }
    .footer-brand span:last-child {
        font-size: 17px;
        font-weight: 600;
        color: var(--text-1);
    }
    .footer-desc {
        font-size: 14px;
        color: var(--text-3);
        line-height: 1.8;
        max-width: 300px;
        margin-bottom: 20px;
    }
    .footer-social {
        display: flex;
        gap: 10px;
    }
    .footer-social a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.08);
        color: var(--text-2);
        font-size: 16px;
        transition: all var(--transition);
    }
    .footer-social a:hover {
        color: var(--text-1);
        border-color: var(--primary);
        background: rgba(46, 111, 255, 0.1);
    }
    .footer-col-title {
        font-size: 14px;
        font-weight: 600;
        color: var(--text-1);
        margin-bottom: 18px;
        letter-spacing: 0.5px;
    }
    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .footer-links a {
        font-size: 14px;
        color: var(--text-2);
        transition: color var(--transition);
    }
    .footer-links a:hover {
        color: var(--primary);
    }
    .footer-contact {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .footer-contact li {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 14px;
        color: var(--text-2);
    }
    .footer-contact i {
        width: 16px;
        color: var(--text-3);
        font-size: 14px;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        padding: 20px 0;
    }
    .footer-bottom-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
    }
    .footer-copyright,
    .footer-icp {
        font-size: 13px;
        color: var(--text-3);
    }

    /* ========== 响应式 ========== */
    @media (max-width: 1023px) {
        :root {
            --spacing-section: 64px;
            --font-size-h1: 40px;
            --font-size-h2: 28px;
        }
        .dock-links {
            display: none;
        }
        .dock-burger {
            display: flex;
        }
        .dock-search-btn {
            display: none;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .process-steps {
            grid-template-columns: repeat(2, 1fr);
        }
        .process-arrow {
            display: none;
        }
        .solution-matrix {
            gap: 24px;
        }
        .solution-card.offset {
            margin-top: 32px;
        }
    }
    @media (max-width: 767px) {
        .dock-wrap {
            top: 8px;
            width: calc(100% - 16px);
        }
        .dock-nav {
            height: 52px;
            border-radius: 16px;
            padding: 0 12px;
        }
        .dock-brand {
            margin-right: 0;
        }
        .brand-text {
            font-size: 15px;
        }
        .dock-download-btn {
            display: none;
        }
        .page-top-space {
            height: 76px;
        }
        .page-banner {
            min-height: 360px;
        }
        .page-banner h1 {
            font-size: 34px;
        }
        .banner-desc {
            font-size: 15px;
        }
        .banner-meta {
            gap: 10px;
        }
        .section {
            --spacing-section: 48px;
        }
        .section-head {
            margin-bottom: 32px;
        }
        .solution-matrix {
            grid-template-columns: 1fr;
        }
        .solution-card.offset {
            margin-top: 0;
        }
        .stats-grid {
            grid-template-columns: 1fr 1fr;
        }
        .stat-number {
            font-size: 32px;
        }
        .process-steps {
            grid-template-columns: 1fr;
        }
        .cta-inner h2 {
            font-size: 28px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .footer-bottom-inner {
            flex-direction: column;
            text-align: center;
        }
        .anchor-bar {
            top: 76px;
        }
    }
    @media (prefers-reduced-motion: reduce) {
        *,
        *::before,
        *::after {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
            scroll-behavior: auto !important;
        }
    }

/* roulang page: category3 */
:root {
  --color-bg: #070D1A;
  --color-bg-alt: #0B1220;
  --primary: #2E6FFF;
  --primary-hover: #4D85FF;
  --primary-active: #1C54D6;
  --accent-1: #E6336D;
  --accent-2: #29D3D0;
  --text-1: #E8EEF7;
  --text-2: #9AA9BD;
  --text-3: #65748B;
  --glass-bg: linear-gradient(165deg, rgba(255,255,255,0.09), rgba(255,255,255,0.02));
  --glass-border: rgba(255,255,255,0.12);
  --glass-blur: 16px;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(0,0,0,0.35);
  --transition: 200ms ease;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "SF Pro Display", "DIN Alternate", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--color-bg);
  color: var(--text-1);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: "";
  position: fixed;
  top: -120px;
  left: -80px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(46,111,255,0.14), transparent 65%);
  pointer-events: none;
  z-index: 0;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-hover); }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ---------- Dock 导航 ---------- */
.dock-wrap {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: min(1200px, calc(100% - 32px));
  z-index: 1000;
}
.dock-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(9,13,26,0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid rgba(255,255,255,0.10);
  box-shadow: 0 12px 40px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.12);
}
.dock-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: 12px;
  color: var(--text-1);
  font-size: 16px;
  font-weight: 600;
}
.dock-brand:hover { color: var(--text-1); }
.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-active));
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(46,111,255,0.4);
}
.dock-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.dock-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 14px;
  border-radius: 22px;
  color: var(--text-2);
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition);
}
.dock-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 5px;
  width: 16px;
  height: 2px;
  border-radius: 1px;
  background: var(--accent-2);
  transform: translateX(-50%) scaleX(0);
  transition: transform var(--transition);
}
.dock-link:hover { color: var(--text-1); }
.dock-link:hover::after { transform: translateX(-50%) scaleX(1); }
.dock-link.active { color: var(--primary-hover); }
.dock-link.active::after { transform: translateX(-50%) scaleX(1); }
.dock-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
}
.dock-search-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  color: var(--text-2);
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.dock-search-btn:hover {
  border-color: var(--primary);
  color: var(--text-1);
  background: rgba(46,111,255,0.15);
}
.btn-main {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, #2E6FFF 0%, #1C54D6 100%);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  box-shadow: 0 8px 30px rgba(46,111,255,0.45), inset 0 1px 0 rgba(255,255,255,0.25);
  transition: all var(--transition);
  text-decoration: none;
  cursor: pointer;
}
.btn-main:hover {
  filter: brightness(1.12);
  box-shadow: 0 10px 40px rgba(46,111,255,0.6);
  transform: translateY(-2px);
  color: #fff;
}
.btn-main:active {
  transform: translateY(0);
  box-shadow: 0 6px 24px rgba(46,111,255,0.35);
}
.btn-sm { height: 40px; padding: 0 18px; font-size: 14px; }
.dock-burger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.dock-burger span {
  width: 18px;
  height: 2px;
  background: var(--text-1);
  border-radius: 1px;
  transition: all 0.3s ease;
}
.dock-burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.dock-burger.open span:nth-child(2) { opacity: 0; }
.dock-burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.dock-search {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  border-radius: 16px;
  background: rgba(9,13,26,0.92);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  padding: 14px;
  display: none;
  opacity: 0;
  transform: translateY(-6px);
  transition: all 0.25s ease;
}
.dock-search.show { display: block; opacity: 1; transform: translateY(0); }
.dock-search form { display: flex; gap: 8px; }
.dock-search input {
  flex: 1;
  height: 44px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  color: var(--text-1);
  padding: 0 14px;
  font-size: 15px;
  outline: none;
  transition: all var(--transition);
}
.dock-search input:focus {
  border-color: rgba(46,111,255,0.6);
  box-shadow: 0 0 0 3px rgba(46,111,255,0.15);
  background: rgba(255,255,255,0.09);
}
.dock-search input::placeholder { color: var(--text-3); }
.dock-search button {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: none;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.dock-search button:hover { background: var(--primary-hover); }

/* ---------- 分类 Hero ---------- */
.cat3-hero {
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: flex-end;
  padding: 140px 0 56px;
  background: linear-gradient(rgba(7,13,26,0.3), rgba(7,13,26,0.85)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  overflow: hidden;
}
.cat3-hero::before {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(230,51,109,0.12), transparent 65%);
  pointer-events: none;
}
.cat3-hero::after {
  content: "";
  position: absolute;
  right: 20px;
  bottom: 12px;
  width: 60px;
  height: 60px;
  background:
    linear-gradient(rgba(230,51,109,0.35) 1.5px, transparent 1.5px),
    linear-gradient(90deg, rgba(230,51,109,0.35) 1.5px, transparent 1.5px),
    linear-gradient(rgba(41,211,208,0.35) 1.5px, transparent 1.5px),
    linear-gradient(90deg, rgba(41,211,208,0.35) 1.5px, transparent 1.5px);
  background-size: 30px 30px, 30px 30px, 30px 30px, 30px 30px;
  background-position: left top, left top, right bottom, right bottom;
  background-repeat: no-repeat;
  opacity: 0.5;
  pointer-events: none;
}
.cat3-hero h1 {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.15;
  margin-bottom: 14px;
}
.cat3-hero p {
  font-size: 16px;
  color: var(--text-2);
  max-width: 560px;
}
.cat3-hero .hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding: 4px 12px;
  border-radius: 6px;
  background: rgba(230,51,109,0.12);
  color: #FF6B94;
  font-size: 12px;
  font-weight: 500;
}

/* ---------- 移动端锚点条 ---------- */
.mobile-toc-wrap {
  display: none;
  position: sticky;
  top: 72px;
  z-index: 50;
  background: rgba(7,13,26,0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 10px 0;
}
.mobile-toc {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 16px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.mobile-toc::-webkit-scrollbar { display: none; }
.mobile-toc a {
  flex-shrink: 0;
  height: 36px;
  line-height: 36px;
  padding: 0 16px;
  border-radius: 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  transition: all var(--transition);
}
.mobile-toc a.active {
  color: var(--text-1);
  background: rgba(46,111,255,0.16);
  border-color: rgba(46,111,255,0.35);
}

/* ---------- 主体布局 ---------- */
.cat3-main {
  padding: 64px 0 96px;
}
.cat3-layout {
  display: flex;
  gap: 56px;
  align-items: flex-start;
}
.toc-sidebar {
  width: 200px;
  flex-shrink: 0;
  position: sticky;
  top: 96px;
}
.toc-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 0 0 12px ;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.toc-title::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--accent-2);
  opacity: 0.5;
}
.toc-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.toc-item {
  position: relative;
  display: block;
  padding: 9px 0 9px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  transition: all var(--transition);
  border-left: 2px solid transparent;
}
.toc-item:hover { color: var(--text-1); }
.toc-item.active {
  color: var(--primary-hover);
  border-left-color: var(--primary);
  background: linear-gradient(90deg, rgba(46,111,255,0.08), transparent);
}

.cat3-content {
  flex: 1;
  max-width: 720px;
}
.support-section {
  margin-bottom: 72px;
  scroll-margin-top: 120px;
}
.section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.section-num {
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-2);
  letter-spacing: 1px;
  background: rgba(41,211,208,0.1);
  border: 1px solid rgba(41,211,208,0.2);
  border-radius: 8px;
  padding: 3px 10px;
  line-height: 1.4;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.3px;
  line-height: 1.25;
  color: var(--text-1);
}
.section-head:after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(255,255,255,0.15), transparent);
  margin-left: 8px;
}
.support-section p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-2);
  margin-bottom: 16px;
}
.support-section p strong {
  color: var(--text-1);
  font-weight: 600;
}
.support-media {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.10);
  box-shadow: var(--shadow);
  margin-top: 24px;
  aspect-ratio: 16/9;
  background: rgba(255,255,255,0.03);
}
.support-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.support-media:hover img { transform: scale(1.02); }
.support-media .media-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 65%, rgba(7,13,26,0.45));
  pointer-events: none;
}
.support-media .media-caption {
  position: absolute;
  left: 16px;
  bottom: 14px;
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  background: rgba(7,13,26,0.5);
  padding: 4px 12px;
  border-radius: 6px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.08);
}

/* ---------- 小标签 ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
}
.badge-magenta {
  background: rgba(230,51,109,0.12);
  color: #FF6B94;
}
.badge-cyan {
  background: rgba(41,211,208,0.12);
  color: #5EE3E0;
}
.badge-blue {
  background: rgba(46,111,255,0.12);
  color: #8FB6FF;
}

/* ---------- FAQ ---------- */
.faq-wrap {
  margin-top: 16px;
}
.faq-item {
  margin-bottom: 12px;
  border-radius: 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover {
  border-color: rgba(46,111,255,0.3);
}
.faq-item.open {
  border-color: rgba(46,111,255,0.4);
  background: linear-gradient(180deg, rgba(46,111,255,0.05), rgba(46,111,255,0.02)), var(--glass-bg);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  padding: 8px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  cursor: pointer;
  user-select: none;
  transition: color var(--transition);
}
.faq-q:hover { color: var(--primary-hover); }
.faq-q .faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--text-2);
  font-size: 13px;
  font-style: normal;
  transition: all 0.3s ease;
  flex-shrink: 0;
  margin-left: 12px;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  border-color: var(--primary);
  color: var(--primary-hover);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-a-inner {
  padding: 0 20px 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-2);
}

/* ---------- CTA ---------- */
.support-cta {
  margin-top: 24px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(46,111,255,0.16), rgba(41,211,208,0.06)), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  border: 1px solid rgba(46,111,255,0.25);
  padding: 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 56px rgba(0,0,0,0.4);
}
.support-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7,13,26,0.75), rgba(7,13,26,0.9));
  pointer-events: none;
}
.support-cta > * { position: relative; z-index: 1; }
.support-cta h2 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 12px;
}
.support-cta p {
  font-size: 15px;
  color: var(--text-2);
  max-width: 480px;
  margin: 0 auto 28px;
}
.cta-btn-group {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-glass {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(255,255,255,0.08);
  color: var(--text-1);
  font-size: 15px;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
}
.btn-glass:hover {
  border-color: rgba(41,211,208,0.6);
  background: rgba(255,255,255,0.12);
  color: var(--text-1);
  transform: translateY(-2px);
}

/* ---------- 信息块列表 ---------- */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}
.info-box {
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
  padding: 18px;
  transition: all var(--transition);
}
.info-box:hover {
  border-color: rgba(41,211,208,0.3);
  background: rgba(255,255,255,0.06);
  transform: translateY(-3px);
}
.info-box i {
  font-size: 22px;
  color: var(--accent-2);
  margin-bottom: 10px;
}
.info-box h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 6px;
}
.info-box p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-3);
  margin-bottom: 0;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 0;
  position: relative;
  z-index: 1;
}
.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(46,111,255,0.4), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; color: var(--text-1); }
.footer-brand:hover { color: var(--text-1); }
.footer-brand .brand-mark { width: 38px; height: 38px; font-size: 17px; }
.footer-desc {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.7;
  margin: 16px 0 20px;
  max-width: 280px;
}
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  font-size: 15px;
  transition: all var(--transition);
}
.footer-social a:hover {
  border-color: rgba(46,111,255,0.5);
  color: var(--primary-hover);
  background: rgba(46,111,255,0.12);
  transform: translateY(-2px);
}
.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.footer-links, .footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 14px;
  color: var(--text-2);
  transition: color var(--transition);
  display: inline-block;
}
.footer-links a:hover { color: var(--primary-hover); }
.footer-contact li {
  font-size: 14px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact i {
  width: 18px;
  color: var(--accent-2);
  font-size: 13px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 18px 0;
}
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-3);
}
.footer-icp { color: var(--text-3); font-size: 13px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1023px) {
  .dock-links { gap: 2px; }
  .dock-link { padding: 0 10px; font-size: 14px; }
  .toc-sidebar { width: 170px; }
  .cat3-layout { gap: 36px; }
  .info-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 767px) {
  .dock-wrap { top: 8px; width: calc(100% - 16px); }
  .dock-nav { height: 52px; border-radius: 16px; padding: 0 8px; }
  .dock-links { display: none; }
  .dock-search-btn { display: none; }
  .dock-burger { display: flex; }
  .dock-download-btn { display: none; }
  .brand-text { font-size: 15px; }
  .brand-mark { width: 34px; height: 34px; font-size: 15px; border-radius: 9px; }

  .cat3-hero { min-height: 300px; padding: 100px 0 40px; }
  .cat3-hero h1 { font-size: 34px; }
  .cat3-hero p { font-size: 15px; }

  .mobile-toc-wrap { display: block; top: 64px; }
  .cat3-main { padding: 40px 0 64px; }
  .cat3-layout { display: block; }
  .toc-sidebar { display: none; }

  .section-head h2 { font-size: 24px; }
  .section-num { font-size: 12px; padding: 2px 8px; }
  .support-section { margin-bottom: 48px; }
  .support-section p { font-size: 15px; }
  .support-media { margin-top: 16px; }

  .info-grid { grid-template-columns: 1fr; gap: 10px; }
  .support-cta { padding: 32px 20px; }
  .support-cta h2 { font-size: 26px; }
  .cta-btn-group { flex-direction: column; align-items: stretch; }
  .cta-btn-group .btn-main, .cta-btn-group .btn-glass { width: 100%; }

  .footer { padding-top: 48px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; gap: 6px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .cat3-hero h1 { font-size: 30px; }
  .support-cta { padding: 28px 16px; }
  .section-head { gap: 10px; }
  .section-head h2 { font-size: 22px; }
  .faq-q { font-size: 15px; padding: 8px 16px; }
  .faq-a-inner { padding: 0 16px 16px; }
}