/* ==========================================================================
   fastlink 高速网络服务 — 官方推广网站样式表
   主题：原创浮空岛与空中文明 (Floating Sky Islands)
   调色板：云白 #F5FAFF, 天空蓝 #91C9EC, 靛青 #34467A, 杏色 #FFB582
   ========================================================================== */

/* --- 1. CSS 变量与设计系统 --- */
:root {
  --color-cloud: #F5FAFF;
  --color-cloud-pure: #FFFFFF;
  --color-sky: #91C9EC;
  --color-sky-light: #E8F4FC;
  --color-sky-soft: #D5ECFB;
  --color-sky-dark: #5A9FC7;
  --color-indigo: #34467A;
  --color-indigo-dark: #1E2848;
  --color-indigo-light: #4D629E;
  --color-indigo-muted: #6B7C9E;
  --color-apricot: #FFB582;
  --color-apricot-dark: #E2884E;
  --color-apricot-light: #FFF0E6;
  --color-apricot-glow: rgba(255, 181, 130, 0.4);

  --color-border: #D8EAF8;
  --color-card-bg: rgba(255, 255, 255, 0.92);
  --color-card-border: rgba(145, 201, 236, 0.35);

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --line-height-base: 1.75;
  --line-height-heading: 1.35;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-pill: 9999px;

  --shadow-sm: 0 2px 8px rgba(52, 70, 122, 0.06);
  --shadow-md: 0 8px 24px rgba(52, 70, 122, 0.08);
  --shadow-lg: 0 16px 40px rgba(52, 70, 122, 0.12);
  --shadow-glow: 0 0 24px var(--color-apricot-glow);

  --transition-fast: 0.18s ease;
  --transition-normal: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);

  --max-width: 1240px;
  --header-height: 74px;
}

/* --- 2. 基础重置与无障碍样式 --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: var(--line-height-base);
  color: var(--color-indigo);
  background-color: var(--color-cloud);
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(145, 201, 236, 0.25) 0%, transparent 40%),
    radial-gradient(circle at 90% 60%, rgba(255, 181, 130, 0.18) 0%, transparent 45%),
    linear-gradient(180deg, #F5FAFF 0%, #EDF6FC 50%, #F5FAFF 100%);
  background-attachment: fixed;
  overflow-x: hidden;
  min-height: 100vh;
}

/* 焦点可见性强化 */
:focus-visible {
  outline: 3px solid var(--color-apricot-dark);
  outline-offset: 3px;
  border-radius: 4px;
}

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

a:hover {
  color: var(--color-apricot-dark);
}

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

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

/* 跳过导航到主内容（无障碍要求） */
.skip-to-main {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--color-indigo-dark);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: 600;
  transition: top var(--transition-fast);
}
.skip-to-main:focus {
  top: 15px;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- 3. 按钮与交互控件系统 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
  text-align: center;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
  user-select: none;
}

/* 按压弹跳效果 (Mandatory movement: buttons depress on click) */
.btn:active, .island-btn:active, .ctrl-btn:active {
  transform: translateY(2px) scale(0.97) !important;
  box-shadow: 0 2px 4px rgba(52, 70, 122, 0.15) !important;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-apricot) 0%, var(--color-apricot-dark) 100%);
  color: #FFFFFF;
  text-shadow: 0 1px 2px rgba(52, 70, 122, 0.2);
  box-shadow: 0 6px 18px var(--color-apricot-glow);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #FFBE8F 0%, #EA7E3E 100%);
  box-shadow: 0 8px 22px rgba(255, 181, 130, 0.55);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-secondary {
  background: var(--color-cloud-pure);
  color: var(--color-indigo);
  border: 1.5px solid var(--color-border);
}
.btn-secondary:hover {
  background: var(--color-sky-light);
  border-color: var(--color-sky);
  color: var(--color-indigo-dark);
  transform: translateY(-2px);
}

.btn-indigo {
  background: linear-gradient(135deg, var(--color-indigo) 0%, var(--color-indigo-dark) 100%);
  color: #FFFFFF;
}
.btn-indigo:hover {
  background: linear-gradient(135deg, var(--color-indigo-light) 0%, var(--color-indigo) 100%);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 15px 34px;
  font-size: 1.08rem;
}

/* --- 4. 导航栏 (Header) --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(245, 250, 255, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(145, 201, 236, 0.35);
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 4px 20px rgba(52, 70, 122, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--color-indigo-dark);
  text-decoration: none;
}
.logo-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-sky) 0%, var(--color-indigo) 100%);
  border-radius: 10px;
  color: #fff;
  box-shadow: 0 4px 12px rgba(145, 201, 236, 0.4);
}
.logo-text span {
  color: var(--color-apricot-dark);
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 22px;
}
.nav-link {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--color-indigo);
  padding: 6px 4px;
  position: relative;
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-apricot);
  transition: width var(--transition-fast);
  border-radius: 2px;
}
.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}
.nav-link:hover {
  color: var(--color-apricot-dark);
}

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

/* 汉堡按钮 (移动端) */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: var(--color-sky-light);
  border: 1px solid var(--color-sky-soft);
  cursor: pointer;
}
.hamburger-line {
  width: 100%;
  height: 2.5px;
  background: var(--color-indigo);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}
.hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}
.hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* 移动端菜单抽屉 */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  padding: 24px 20px 32px;
  border-bottom: 2px solid var(--color-sky-soft);
  box-shadow: 0 16px 32px rgba(52, 70, 122, 0.12);
  flex-direction: column;
  gap: 16px;
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
  z-index: 999;
}
.nav-mobile.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.nav-mobile .nav-link {
  font-size: 1.05rem;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-sky-soft);
}

/* --- 5. 英雄区域 (Hero) 与浮岛全景画布 --- */
.hero-section {
  position: relative;
  padding: 50px 0 70px;
  overflow: hidden;
}

.hero-header {
  text-align: center;
  max-width: 860px;
  margin: 0 auto 36px;
  position: relative;
  z-index: 2;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--color-sky-light);
  border: 1px solid var(--color-sky);
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-indigo);
  margin-bottom: 18px;
}
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-apricot-dark);
  box-shadow: 0 0 8px var(--color-apricot);
}

.hero-title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: var(--line-height-heading);
  color: var(--color-indigo-dark);
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}
.hero-title .brand-highlight {
  color: var(--color-apricot-dark);
  position: relative;
  display: inline-block;
}
.hero-title .brand-highlight::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 8px;
  background: var(--color-sky-soft);
  z-index: -1;
  border-radius: 4px;
}

.hero-desc {
  font-size: clamp(1.02rem, 1.8vw, 1.18rem);
  color: var(--color-indigo-muted);
  max-width: 720px;
  margin: 0 auto 28px;
  line-height: 1.8;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 18px;
}

.cta-guarantee-note {
  font-size: 0.86rem;
  color: var(--color-indigo-muted);
  margin-top: 10px;
}

/* 动效控制栏 (播放/暂停 + 目标目的地直达按键) */
.sky-control-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--color-card-border);
  backdrop-filter: blur(8px);
  padding: 10px 18px;
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: 10;
}

.ctrl-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-cloud);
  border: 1px solid var(--color-border);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--color-indigo);
  transition: all var(--transition-fast);
}
.ctrl-btn:hover {
  background: var(--color-sky-light);
  border-color: var(--color-sky);
  color: var(--color-indigo-dark);
}

.destination-selector {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.dest-label {
  font-size: 0.84rem;
  color: var(--color-indigo-muted);
  font-weight: 500;
}
.island-btn {
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-indigo);
  transition: all var(--transition-fast);
}
.island-btn:hover, .island-btn.active {
  background: var(--color-sky);
  border-color: var(--color-sky-dark);
  color: #fff;
  transform: translateY(-1px);
}

/* 浮空岛全景天际舞台 (Panorama Sky Canvas) */
.sky-panorama {
  position: relative;
  width: 100%;
  height: 520px;
  background: linear-gradient(180deg, #D4EDFC 0%, #E8F5FD 55%, #F5FAFF 100%);
  border: 1.5px solid var(--color-card-border);
  border-radius: var(--radius-xl);
  box-shadow: inset 0 2px 20px rgba(145, 201, 236, 0.4), var(--shadow-lg);
  overflow: hidden;
}

/* 背景漂浮云彩 (Drifting Clouds) */
.clouds-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 200%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}
.cloud-drift-1 {
  position: absolute;
  top: 15%;
  left: 0;
  width: 100%;
  animation: driftClouds 55s linear infinite;
  opacity: 0.65;
}
.cloud-drift-2 {
  position: absolute;
  top: 55%;
  left: -200px;
  width: 100%;
  animation: driftClouds 80s linear infinite reverse;
  opacity: 0.45;
}
@keyframes driftClouds {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* 岛屿间巡航航线 SVG */
.sky-routes-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}
.flight-path {
  fill: none;
  stroke: var(--color-sky-dark);
  stroke-width: 2;
  stroke-dasharray: 6 6;
  opacity: 0.65;
  animation: dashRoute 24s linear infinite;
}
.flight-path-accent {
  stroke: var(--color-apricot);
  opacity: 0.75;
}
@keyframes dashRoute {
  to { stroke-dashoffset: -200; }
}

/* 浮空岛通用类与布局 */
.sky-islands-container {
  position: relative;
  width: 100%;
  height: 100%;
  z-index: 3;
}

.floating-island {
  position: absolute;
  cursor: pointer;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  outline: none;
}
.floating-island:hover {
  transform: scale(1.05) !important;
  z-index: 12 !important;
}
.floating-island:focus-visible {
  outline: 3px solid var(--color-apricot-dark);
  outline-offset: 4px;
}

/* 各个岛屿定位与浮动动画 */
.island-hub {
  top: 28%;
  left: 45%;
  width: 210px;
  animation: floatIsland1 6.5s ease-in-out infinite;
  z-index: 5;
}
.island-ai {
  top: 12%;
  left: 10%;
  width: 180px;
  animation: floatIsland2 7.8s ease-in-out infinite;
  z-index: 4;
}
.island-stream {
  top: 20%;
  right: 8%;
  width: 190px;
  animation: floatIsland3 8.2s ease-in-out infinite;
  z-index: 4;
}
.island-dev {
  bottom: 12%;
  left: 24%;
  width: 195px;
  animation: floatIsland4 7.2s ease-in-out infinite;
  z-index: 6;
}

@keyframes floatIsland1 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-14px) rotate(0.8deg); }
}
@keyframes floatIsland2 {
  0%, 100% { transform: translateY(0px) rotate(-0.5deg); }
  50% { transform: translateY(-18px) rotate(1.2deg); }
}
@keyframes floatIsland3 {
  0%, 100% { transform: translateY(0px) rotate(0.4deg); }
  50% { transform: translateY(-16px) rotate(-1deg); }
}
@keyframes floatIsland4 {
  0%, 100% { transform: translateY(0px) rotate(-0.8deg); }
  50% { transform: translateY(-12px) rotate(0.6deg); }
}

/* 浮岛上方的铭牌徽章 */
.island-plate {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.95);
  border: 1.5px solid var(--color-indigo);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-indigo-dark);
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 4px;
  pointer-events: none;
}
.island-plate span.indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #39C5BB;
}

/* 航行小飞艇 (Interactive Airship) */
.airship-vehicle {
  position: absolute;
  width: 72px;
  height: 48px;
  z-index: 20;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: left 1.2s cubic-bezier(0.25, 1, 0.5, 1), top 1.2s cubic-bezier(0.25, 1, 0.5, 1);
  filter: drop-shadow(0 8px 12px rgba(52, 70, 122, 0.25));
}
.airship-body {
  animation: airshipWobble 3.2s ease-in-out infinite;
}
@keyframes airshipWobble {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-4px) rotate(2deg); }
}

/* 飞艇停靠提示卡片 (Setup Tip Modal/Callout) */
.island-tip-popup {
  position: absolute;
  bottom: 20px;
  right: 20px;
  max-width: 360px;
  background: rgba(255, 255, 255, 0.98);
  border: 1.5px solid var(--color-sky);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  z-index: 50;
  backdrop-filter: blur(10px);
  transform: translateY(20px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}
.island-tip-popup.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}
.tip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.tip-badge {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-apricot-dark);
  background: var(--color-apricot-light);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}
.tip-close-btn {
  font-size: 1.2rem;
  line-height: 1;
  color: var(--color-indigo-muted);
  cursor: pointer;
  padding: 2px 6px;
}
.tip-close-btn:hover {
  color: var(--color-indigo);
}
.tip-title {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--color-indigo-dark);
  margin-bottom: 6px;
}
.tip-body {
  font-size: 0.86rem;
  color: var(--color-indigo);
  line-height: 1.6;
}

.panorama-disclaimer {
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-indigo-muted);
  margin-top: 12px;
}

/* --- 6. 通用章节与排版规范 --- */
.section {
  padding: 80px 0;
  position: relative;
}
.section-alt {
  background: rgba(255, 255, 255, 0.65);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px;
}
.section-tag {
  display: inline-block;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-apricot-dark);
  background: var(--color-apricot-light);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-weight: 800;
  color: var(--color-indigo-dark);
  line-height: var(--line-height-heading);
  margin-bottom: 14px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--color-indigo-muted);
  line-height: 1.7;
}

/* --- 7. 产品优势 (Advantages) --- */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 28px;
}

.advantage-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  position: relative;
  overflow: hidden;
}
.advantage-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-sky);
}
.advantage-icon-wrapper {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: var(--color-sky-light);
  border: 1px solid var(--color-sky);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-indigo);
  transition: transform var(--transition-normal);
}
.advantage-card:hover .advantage-icon-wrapper {
  transform: scale(1.1) rotate(4deg);
  background: var(--color-apricot-light);
  border-color: var(--color-apricot);
  color: var(--color-apricot-dark);
}
.advantage-title {
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--color-indigo-dark);
  margin-bottom: 12px;
}
.advantage-text {
  font-size: 0.94rem;
  color: var(--color-indigo-muted);
  line-height: 1.75;
}

/* --- 8. 节点网络架构说明 (Node Infrastructure) --- */
.network-overview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.network-text-side h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-indigo-dark);
  margin-bottom: 16px;
}
.network-text-side p {
  font-size: 0.98rem;
  color: var(--color-indigo-muted);
  margin-bottom: 20px;
  line-height: 1.8;
}

.node-matrix-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}
.node-matrix-item {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
}
.node-matrix-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.96rem;
  color: var(--color-indigo-dark);
  margin-bottom: 6px;
}
.node-flag {
  font-size: 1.2rem;
}
.node-matrix-metrics {
  font-size: 0.82rem;
  color: var(--color-indigo-muted);
}
.matrix-tag {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--color-sky-light);
  color: var(--color-indigo);
  font-weight: 600;
  font-size: 0.74rem;
}

.network-visual-card {
  background: #FFFFFF;
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-md);
}
.network-visual-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-sky-soft);
}
.visual-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #2BA064;
}
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2BA064;
  box-shadow: 0 0 8px rgba(43, 160, 100, 0.6);
  animation: pulseDot 2s infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.latency-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.latency-table th, .latency-table td {
  padding: 10px 12px;
  text-align: left;
}
.latency-table th {
  color: var(--color-indigo-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
}
.latency-table td {
  border-bottom: 1px solid var(--color-sky-light);
  color: var(--color-indigo);
}
.latency-pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.78rem;
  background: #E8F8F0;
  color: #1A844D;
}

/* --- 9. AI 与流媒体专区 (AI & Streaming) --- */
.scenario-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
}
.tab-btn {
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  background: var(--color-cloud-pure);
  border: 1.5px solid var(--color-border);
  font-weight: 600;
  color: var(--color-indigo);
  transition: all var(--transition-fast);
}
.tab-btn.active, .tab-btn:hover {
  background: var(--color-indigo);
  color: #FFFFFF;
  border-color: var(--color-indigo);
  box-shadow: var(--shadow-sm);
}

.scenario-content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}
.scenario-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
}
.scenario-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.scenario-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--color-sky-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-indigo-dark);
}
.scenario-card-title {
  font-size: 1.26rem;
  font-weight: 700;
  color: var(--color-indigo-dark);
}
.scenario-app-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.app-chip {
  padding: 4px 10px;
  background: var(--color-sky-light);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-indigo);
  border: 1px solid var(--color-sky-soft);
}
.scenario-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.94rem;
  color: var(--color-indigo);
}
.scenario-points li {
  position: relative;
  padding-left: 22px;
  line-height: 1.65;
}
.scenario-points li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--color-apricot-dark);
}

/* --- 10. 套餐价格 (Pricing) --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  align-items: stretch;
  margin-bottom: 30px;
}

.pricing-card {
  background: var(--color-cloud-pure);
  border: 1.5px solid var(--color-card-border);
  border-radius: var(--radius-xl);
  padding: 36px 26px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  box-shadow: var(--shadow-sm);
}
.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-sky);
}
.pricing-card.featured {
  border-color: var(--color-apricot);
  background: linear-gradient(180deg, #FFFFFF 0%, #FFF9F5 100%);
  box-shadow: 0 12px 30px rgba(255, 181, 130, 0.25);
  transform: scale(1.03);
}
.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-apricot) 0%, var(--color-apricot-dark) 100%);
  color: #FFFFFF;
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 12px var(--color-apricot-glow);
}

.pricing-tier-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-indigo-dark);
  margin-bottom: 6px;
}
.pricing-tier-desc {
  font-size: 0.88rem;
  color: var(--color-indigo-muted);
  margin-bottom: 20px;
  min-height: 42px;
}

.pricing-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px dashed var(--color-sky-soft);
}
.price-symbol {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-indigo-dark);
}
.price-number {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--color-indigo-dark);
  letter-spacing: -0.02em;
}
.price-period {
  font-size: 0.88rem;
  color: var(--color-indigo-muted);
}
.price-unconfirmed {
  font-size: 0.82rem;
  color: var(--color-apricot-dark);
  background: var(--color-apricot-light);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
  flex-grow: 1;
  font-size: 0.92rem;
  color: var(--color-indigo);
}
.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.5;
}
.pricing-check {
  color: #2BA064;
  font-weight: bold;
}

.pricing-disclaimer-box {
  background: var(--color-sky-light);
  border: 1px solid var(--color-sky-soft);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  text-align: center;
  font-size: 0.86rem;
  color: var(--color-indigo-muted);
  line-height: 1.7;
}

/* --- 11. 博客文章卡片 (Nine Article Cards: 3x3 Desktop, 2 cols Tablet, 1 col Mobile) --- */
.articles-section {
  padding-top: 20px;
}

.articles-grid-9 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.article-card {
  background: var(--color-card-bg);
  border: 1.5px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  text-decoration: none;
}
.article-card:hover, .article-card:focus-within {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-sky-dark);
}

/* 文章配图动画 (Subtle move on hover/focus & advertising enhancements) */
.article-thumbnail-box {
  height: 210px;
  background: #111827;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.article-svg-art {
  width: 100%;
  height: 100%;
  transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.article-card:hover .article-svg-art,
.article-card:focus-within .article-svg-art {
  transform: scale(1.06) translateY(-3px);
}

/* 广告级浮动徽标 (Ad Floating Badge) */
.ad-float-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #FFFFFF;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 5px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  z-index: 5;
  pointer-events: none;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}
.article-card:hover .ad-float-badge {
  transform: scale(1.05);
  background: rgba(30, 41, 59, 0.95);
  border-color: var(--color-apricot);
}

.article-ad-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-apricot-dark);
  background: var(--color-apricot-light);
  padding: 3px 10px;
  border-radius: 6px;
  margin-bottom: 12px;
  width: fit-content;
}

.article-card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--color-indigo-muted);
  margin-bottom: 10px;
}
.article-category {
  background: var(--color-sky-light);
  color: var(--color-indigo-dark);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-weight: 600;
}

.article-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-indigo-dark);
  line-height: 1.45;
  margin-bottom: 10px;
  transition: color var(--transition-fast);
}
.article-card:hover .article-card-title {
  color: var(--color-apricot-dark);
}

.article-card-excerpt {
  font-size: 0.88rem;
  color: var(--color-indigo-muted);
  line-height: 1.65;
  margin-bottom: 18px;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px dashed var(--color-sky-soft);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--color-indigo);
}
.read-more-arrow {
  color: var(--color-apricot-dark);
  transition: transform var(--transition-fast);
}
.article-card:hover .read-more-arrow {
  transform: translateX(4px);
}

/* --- 12. 用户反馈与口碑 (Testimonials: 3-6 cards) --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 26px;
  margin-bottom: 24px;
}

.testimonial-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.testimonial-badge {
  display: inline-block;
  font-size: 0.76rem;
  background: var(--color-sky-light);
  color: var(--color-indigo-muted);
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 14px;
}
.testimonial-quote {
  font-size: 0.94rem;
  color: var(--color-indigo);
  line-height: 1.75;
  margin-bottom: 20px;
  font-style: normal;
}
.testimonial-user {
  display: flex;
  align-items: center;
  gap: 12px;
}
.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-sky) 0%, var(--color-indigo) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-weight: 700;
  font-size: 1rem;
}
.user-info h4 {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--color-indigo-dark);
}
.user-info p {
  font-size: 0.8rem;
  color: var(--color-indigo-muted);
}
.testimonial-disclaimer {
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-indigo-muted);
}

/* --- 13. 手风琴 FAQ (Accordion FAQ) --- */
.faq-container {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--color-card-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.faq-item.active {
  border-color: var(--color-sky);
  box-shadow: var(--shadow-md);
}

.faq-trigger {
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-indigo-dark);
  cursor: pointer;
  background: none;
  border: none;
}
.faq-trigger:hover {
  color: var(--color-apricot-dark);
}
.faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-sky-light);
  color: var(--color-indigo);
  font-weight: 700;
  transition: transform var(--transition-normal), background-color var(--transition-fast);
  flex-shrink: 0;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--color-apricot-light);
  color: var(--color-apricot-dark);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
}
.faq-content-inner {
  padding: 0 24px 22px;
  font-size: 0.94rem;
  color: var(--color-indigo);
  line-height: 1.8;
  border-top: 1px dashed var(--color-sky-light);
  margin-top: -4px;
  padding-top: 14px;
}

/* --- 14. 页脚 (Footer) --- */
.site-footer {
  background: var(--color-indigo-dark);
  color: #E2E8F0;
  padding: 70px 0 35px;
  margin-top: 80px;
  position: relative;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand h3 {
  font-size: 1.4rem;
  color: #FFFFFF;
  margin-bottom: 14px;
  font-weight: 800;
}
.footer-brand p {
  font-size: 0.9rem;
  color: #A0AEC0;
  line-height: 1.8;
  max-width: 340px;
}

.footer-column h4 {
  font-size: 1rem;
  color: #FFFFFF;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: #CBD5E1;
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}
.footer-links a:hover {
  color: var(--color-apricot);
}

/* 强制要求的页脚友情推荐 (Footer recommendations once each) */
.footer-partner-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 40px;
}
.partner-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-sky);
  margin-bottom: 12px;
}
.partner-links-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.partner-link {
  color: #E2E8F0;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}
.partner-link:hover {
  background: var(--color-indigo);
  color: var(--color-apricot);
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.82rem;
  color: #94A3B8;
}
.footer-disclaimer-note {
  max-width: 600px;
  line-height: 1.6;
}

/* --- 15. 文章详情页专用排版 (Article Layout) --- */
.article-page-header {
  padding: 40px 0 20px;
}
.breadcrumb-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--color-indigo-muted);
  margin-bottom: 24px;
}
.breadcrumb-separator {
  color: var(--color-border);
}

.article-main-container {
  max-width: 880px;
  margin: 0 auto;
  background: #FFFFFF;
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 60px;
}

.article-hero-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--color-indigo-dark);
  line-height: 1.35;
  margin-bottom: 18px;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  padding: 14px 0;
  border-top: 1px solid var(--color-sky-light);
  border-bottom: 1px solid var(--color-sky-light);
  font-size: 0.86rem;
  color: var(--color-indigo-muted);
  margin-bottom: 32px;
}
.article-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 文章正文富文本 */
.article-body-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #2D3748;
}
.article-body-content h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-indigo-dark);
  margin: 42px 0 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-sky-soft);
}
.article-body-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-indigo);
  margin: 28px 0 14px;
}
.article-body-content p {
  margin-bottom: 20px;
}
.article-body-content ul, .article-body-content ol {
  margin: 0 0 24px 24px;
}
.article-body-content li {
  margin-bottom: 8px;
}
.article-body-content blockquote {
  background: var(--color-sky-light);
  border-left: 4px solid var(--color-sky-dark);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 24px 0;
  color: var(--color-indigo);
  font-style: normal;
}
.article-body-content code {
  background: var(--color-sky-light);
  color: var(--color-indigo-dark);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}
.article-body-content pre {
  background: #1E293B;
  color: #F8FAFC;
  padding: 18px 22px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 24px 0;
  font-size: 0.92rem;
  line-height: 1.6;
}

/* 商业转化横幅 (In-Article Commercial CTA) */
.article-cta-box {
  background: linear-gradient(135deg, #E8F5FD 0%, #FFF5ED 100%);
  border: 1.5px solid var(--color-sky);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin: 40px 0;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.article-cta-box h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-indigo-dark);
  margin-bottom: 10px;
}
.article-cta-box p {
  font-size: 0.95rem;
  color: var(--color-indigo);
  margin-bottom: 20px;
}

/* 相关推荐模块 (Related Articles) */
.related-articles-section {
  margin-top: 50px;
  padding-top: 36px;
  border-top: 2px dashed var(--color-sky-soft);
}
.related-articles-section h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-indigo-dark);
  margin-bottom: 20px;
}
.related-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.related-link-card {
  background: var(--color-cloud);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px;
  display: block;
  transition: all var(--transition-fast);
}
.related-link-card:hover {
  border-color: var(--color-sky);
  background: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.related-link-title {
  font-weight: 700;
  font-size: 0.96rem;
  color: var(--color-indigo-dark);
  margin-bottom: 6px;
}
.related-link-desc {
  font-size: 0.82rem;
  color: var(--color-indigo-muted);
}

/* --- 16. 动效暂停控制与 Reduced Motion 规范 --- */
body[data-animation-state="paused"] *,
body[data-animation-state="paused"] *::before,
body[data-animation-state="paused"] *::after {
  animation-play-state: paused !important;
}

@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;
  }
  .floating-island, .airship-vehicle, .cloud-drift-1, .cloud-drift-2, .flight-path {
    animation: none !important;
  }
}

/* --- 17. 响应式适配媒体查询 (375px, 390px, 430px, 768px, 1024px, 1440px) --- */
@media (max-width: 1024px) {
  .articles-grid-9 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  .network-overview {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }
  .nav-desktop {
    display: none;
  }
  .hamburger-btn, .nav-mobile {
    display: flex;
  }
  .sky-panorama {
    height: 440px;
  }
  .island-hub {
    top: 25%;
    left: 35%;
    width: 160px;
  }
  .island-ai {
    top: 10%;
    left: 5%;
    width: 140px;
  }
  .island-stream {
    top: 18%;
    right: 4%;
    width: 140px;
  }
  .island-dev {
    bottom: 8%;
    left: 10%;
    width: 150px;
  }
  .airship-vehicle {
    width: 58px;
    height: 38px;
  }
  .articles-grid-9 {
    grid-template-columns: 1fr;
  }
  .article-main-container {
    padding: 24px 18px;
    border-radius: var(--radius-lg);
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-4px);
  }
  .footer-top-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 430px) {
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta-group .btn {
    width: 100%;
  }
  .sky-control-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .destination-selector {
    justify-content: center;
  }
  .sky-panorama {
    height: 380px;
  }
  .node-matrix-list {
    grid-template-columns: 1fr;
  }
  .island-tip-popup {
    left: 15px;
    right: 15px;
    bottom: 15px;
    max-width: none;
  }
}