/* =========================================================
   全局变量 & 基础重置
   ========================================================= */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  border-color: var(--border-color);
}

:root {
  --bg: #0a0a12;
  --fg: #f4f6fb;
  --card: #12121c;
  --card-hover: #181826;
  --muted: #232331;
  --muted-fg: #9aa3b2;
  --border-color: rgba(255, 255, 255, 0.08);
  --header-bg: rgba(10, 10, 18, 0.8);
  --container: 1100px;
  --blue: #3b82f6;
  --indigo: #4f46e5;
  --blue-400: #60a5fa;
  --indigo-400: #818cf8;
  --emerald: #34d399;
  --amber: #fbbf24;
  --glow: 0 10px 40px -10px rgba(59, 130, 246, 0.55);
  --card-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px -12px rgba(0, 0, 0, 0.6);
  --font-sans: "Inter", system-ui, sans-serif;
  --font-outfit: "Outfit", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background:
    radial-gradient(1200px 600px at 50% -200px, rgba(59, 130, 246, 0.08), transparent 60%),
    var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  line-height: 1.5;
}

::selection {
  background: rgba(59, 130, 246, 0.3);
  color: #fff;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #2a2a38;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #3a3a4a;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

ul {
  list-style: none;
}

section[id],
div[id] {
  scroll-margin-top: 76px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 16px;
}

.border-b {
  border-bottom: 1px solid var(--border-color);
}

.border-t {
  border-top: 1px solid var(--border-color);
}

.font-outfit {
  font-family: var(--font-outfit);
}

.font-mono {
  font-family: var(--font-mono);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* =========================================================
   通用按钮
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(to right, #2563eb, #4f46e5);
  box-shadow: var(--glow);
  padding: 12px 24px;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

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

.btn-secondary {
  color: var(--fg);
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
  padding: 12px 24px;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-nav-cta {
  display: none;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  background: linear-gradient(to right, #2563eb, #4f46e5);
  border-radius: 8px;
  flex-shrink: 0;
}

.btn-nav-cta:hover {
  opacity: 0.9;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: #93c5fd;
  padding: 8px 12px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.btn-ghost:hover {
  color: #bfdbfe;
  background: rgba(59, 130, 246, 0.1);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 14px;
  color: var(--fg);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  transition: background 0.2s;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* =========================================================
   滚动显现动画
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* =========================================================
   顶部导航 Header
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border-color);
  background: var(--header-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 16px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.brand-icon,
.footer-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(to bottom right, #3b82f6, #4f46e5);
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 700;
}

.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  font-size: 12px;
}

.brand-name {
  font-size: 16px;
  font-weight: 700;
  font-family: var(--font-outfit);
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--muted-fg);
  transition: color 0.2s, background 0.2s;
}

.nav-link:hover {
  color: var(--fg);
  background: var(--muted);
}

.menu-toggle {
  display: flex;
  padding: 8px;
  border-radius: 8px;
  color: var(--muted-fg);
  font-size: 18px;
  line-height: 1;
}

.menu-toggle:hover {
  color: var(--fg);
  background: var(--muted);
}

.mobile-nav {
  display: none;
  border-top: 1px solid var(--border-color);
  background: var(--bg);
  padding: 12px 16px 16px;
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav .nav-link {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
}

.mobile-nav .btn-primary {
  width: 100%;
  margin-top: 8px;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }

  .btn-nav-cta {
    display: inline-flex;
  }

  .menu-toggle {
    display: none;
  }

  .mobile-nav,
  .mobile-nav.is-open {
    display: none;
  }
}

/* =========================================================
   Hero 首屏
   ========================================================= */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.hero-bg-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom right,
    rgba(30, 58, 138, 0.3),
    rgba(49, 46, 129, 0.1),
    transparent
  );
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.07;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.5) 1px, transparent 1px);
  background-size: 40px 40px;
}

.hero-blob {
  position: absolute;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 720px;
  height: 420px;
  border-radius: 9999px;
  background: rgba(37, 99, 235, 0.2);
  filter: blur(120px);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 16px;
}

.hero-content {
  max-width: 48rem;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 9999px;
}

.badge-online {
  color: #6ee7b7;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.badge-urgent {
  color: #fcd34d;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.ping {
  position: relative;
  display: flex;
  width: 8px;
  height: 8px;
}

.ping-ring {
  position: absolute;
  display: inline-flex;
  width: 100%;
  height: 100%;
  border-radius: 9999px;
  background: #34d399;
  opacity: 0.75;
  animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.ping-dot {
  position: relative;
  display: inline-flex;
  width: 8px;
  height: 8px;
  border-radius: 9999px;
  background: #34d399;
}

@keyframes ping {
  75%,
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

.hero-title {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.15;
  font-family: var(--font-outfit);
}

.hero-title-highlight {
  color: transparent;
  background: linear-gradient(to right, #60a5fa, #818cf8);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-subtitle {
  margin-top: 16px;
  font-size: 16px;
  color: var(--muted-fg);
  line-height: 1.7;
  max-width: 43rem;
}

.free-plan {
  margin-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: #bfdbfe;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 8px 16px;
  border-radius: 8px;
}

.free-plan svg {
  color: #93c5fd;
  flex-shrink: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.wechat-row {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.wechat-box {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--card);
  border-radius: 8px;
  padding: 8px 14px;
}

.wechat-box svg {
  color: #60a5fa;
  flex-shrink: 0;
}

.wechat-label {
  color: var(--muted-fg);
}

.wechat-id {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* 数据指标卡 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 48px;
}

.stat-card {
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: rgba(18, 18, 28, 0.7);
  backdrop-filter: blur(8px);
  padding: 16px;
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: border-color 0.2s;
}

.stat-card:hover {
  border-color: rgba(59, 130, 246, 0.3);
}

.stat-value {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 24px;
  font-weight: 800;
  font-family: var(--font-outfit);
}

.stat-value svg {
  color: #60a5fa;
  flex-shrink: 0;
}

.stat-label {
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted-fg);
}

@media (min-width: 640px) {
  .hero-inner {
    padding: 96px 16px;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 48px;
  }
}

/* =========================================================
   区块通用标题
   ========================================================= */
.section {
  border-bottom: 1px solid var(--border-color);
}

.section-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px 16px;
}

.section-header {
  margin-bottom: 40px;
  text-align: center;
}

.section-eyebrow {
  font-size: 12px;
  font-weight: 600;
  color: #60a5fa;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-family: var(--font-mono);
  margin-bottom: 8px;
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  font-family: var(--font-outfit);
}

.section-desc {
  margin-top: 12px;
  font-size: 14px;
  color: var(--muted-fg);
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 640px) {
  .section-inner {
    padding: 80px 16px;
  }

  .section-title {
    font-size: 30px;
  }
}

/* =========================================================
   服务 Services
   ========================================================= */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.service-card {
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--card);
  padding: 24px;
  box-shadow: var(--card-shadow);
  transition: all 0.2s;
}

.service-card:hover {
  border-color: rgba(59, 130, 246, 0.4);
  background: var(--card-hover);
  transform: translateY(-4px);
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #93c5fd;
  margin-bottom: 20px;
  transition: background 0.2s;
}

.service-card:hover .service-icon {
  background: rgba(59, 130, 246, 0.25);
}

.service-card h3 {
  font-weight: 600;
  margin-bottom: 8px;
}

.service-card p {
  font-size: 14px;
  color: var(--muted-fg);
  line-height: 1.7;
}

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* =========================================================
   项目案例 Projects
   ========================================================= */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.project-card {
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--card);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: border-color 0.2s;
}

.project-card:hover {
  border-color: rgba(59, 130, 246, 0.4);
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr;
}

.project-media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--muted);
  overflow: hidden;
}

.project-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-media-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.4), transparent);
}

.project-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.project-type {
  font-size: 12px;
  color: #60a5fa;
  font-weight: 500;
  margin-bottom: 6px;
}

.project-body h3 {
  font-size: 20px;
  font-weight: 700;
  font-family: var(--font-outfit);
}

.project-desc {
  font-size: 14px;
  color: var(--muted-fg);
  line-height: 1.7;
  margin: 20px 0;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: rgba(244, 246, 251, 0.85);
}

.feature-list svg {
  color: #60a5fa;
  flex-shrink: 0;
  margin-top: 2px;
}

.result-badge {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  font-size: 12px;
  font-weight: 600;
  color: #6ee7b7;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 6px 12px;
  border-radius: 9999px;
}

@media (min-width: 640px) {
  .project-body {
    padding: 32px;
  }

  .project-body h3 {
    font-size: 24px;
  }
}

@media (min-width: 1024px) {
  .project-grid {
    grid-template-columns: 1fr 1fr;
  }

  .project-media {
    aspect-ratio: auto;
    min-height: 100%;
  }
}

/* =========================================================
   客户评价 Testimonials
   ========================================================= */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.testimonial-card {
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--card);
  padding: 24px;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s;
}

.testimonial-card:hover {
  border-color: rgba(59, 130, 246, 0.4);
}

.stars {
  display: flex;
  gap: 4px;
  color: #fbbf24;
  font-size: 14px;
  margin-bottom: 16px;
}

.testimonial-card blockquote {
  font-size: 14px;
  color: rgba(244, 246, 251, 0.9);
  line-height: 1.7;
  margin-bottom: 24px;
  flex: 1;
}

.testimonial-card figcaption {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 9999px;
  background: linear-gradient(to bottom right, #3b82f6, #4f46e5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-outfit);
}

.person-name {
  font-size: 14px;
  font-weight: 600;
}

.person-role {
  font-size: 12px;
  color: var(--muted-fg);
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* =========================================================
   合作流程 Process
   ========================================================= */
.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.process-card {
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--card);
  padding: 20px;
  box-shadow: var(--card-shadow);
  transition: border-color 0.2s;
}

.process-card:hover {
  border-color: rgba(59, 130, 246, 0.4);
}

.process-step {
  font-size: 30px;
  font-weight: 800;
  font-family: var(--font-outfit);
  color: transparent;
  background: linear-gradient(to bottom right, rgba(96, 165, 250, 0.8), rgba(37, 99, 235, 0.3));
  -webkit-background-clip: text;
  background-clip: text;
  margin-bottom: 12px;
}

.process-card h3 {
  font-weight: 600;
  margin-bottom: 6px;
}

.process-card p {
  font-size: 12px;
  color: var(--muted-fg);
  line-height: 1.6;
}

@media (min-width: 640px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .process-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* =========================================================
   关于我 About
   ========================================================= */
.about-card {
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--card);
  box-shadow: var(--card-shadow);
  overflow: hidden;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
}

.about-exp {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 32px;
  background: linear-gradient(to bottom right, rgba(37, 99, 235, 0.15), rgba(79, 70, 229, 0.05));
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.about-exp-num {
  font-size: 48px;
  font-weight: 800;
  font-family: var(--font-outfit);
  color: transparent;
  background: linear-gradient(to bottom right, #60a5fa, #818cf8);
  -webkit-background-clip: text;
  background-clip: text;
  line-height: 1;
}

.about-exp-label {
  font-size: 14px;
  color: var(--muted-fg);
}

.about-body {
  padding: 24px;
}

.about-body .section-title {
  margin-bottom: 16px;
}

.about-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: rgba(244, 246, 251, 0.85);
}

.about-list svg {
  color: #60a5fa;
  flex-shrink: 0;
  margin-top: 2px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 9999px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: #bfdbfe;
  font-weight: 500;
}

@media (min-width: 640px) {
  .about-body {
    padding: 32px;
  }
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 280px 1fr;
  }

  .about-exp {
    border-bottom: none;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
  }
}

/* =========================================================
   联系 Contact
   ========================================================= */
.contact {
  position: relative;
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom right,
    rgba(30, 58, 138, 0.25),
    rgba(49, 46, 129, 0.1),
    transparent
  );
}

.contact-blob {
  position: absolute;
  bottom: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 640px;
  height: 360px;
  border-radius: 9999px;
  background: rgba(37, 99, 235, 0.2);
  filter: blur(120px);
  pointer-events: none;
}

.contact-inner {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px 16px;
}

.contact-panel {
  border-radius: 24px;
  border: 1px solid rgba(59, 130, 246, 0.25);
  background: var(--card);
  padding: 32px;
  text-align: center;
  box-shadow: var(--glow);
}

.contact-panel .badge {
  margin-bottom: 20px;
}

.contact-title {
  font-size: 24px;
  font-weight: 800;
  font-family: var(--font-outfit);
  line-height: 1.25;
}

.contact-desc {
  margin-top: 16px;
  font-size: 14px;
  color: var(--muted-fg);
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
}

.contact-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.contact-cta .btn-primary {
  width: 100%;
  padding: 14px 28px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
}

.contact-note {
  margin-top: 24px;
  font-size: 12px;
  color: var(--muted-fg);
}

@media (min-width: 640px) {
  .contact-inner {
    padding: 96px 16px;
  }

  .contact-panel {
    padding: 56px;
  }

  .contact-title {
    font-size: 36px;
  }

  .contact-desc {
    font-size: 16px;
  }

  .contact-cta {
    flex-direction: row;
  }

  .contact-cta .btn-primary {
    width: auto;
  }
}

/* =========================================================
   页脚 Footer
   ========================================================= */
.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 32px 0 96px;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-icon {
  width: 20px;
  height: 20px;
  border-radius: 6px;
  font-size: 10px;
}

.footer-text {
  font-size: 14px;
  color: var(--muted-fg);
  font-family: var(--font-outfit);
}

.footer-copy {
  font-size: 12px;
  color: var(--muted-fg);
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
  }
}

@media (min-width: 768px) {
  .site-footer {
    padding-bottom: 32px;
  }
}

/* =========================================================
   悬浮咨询按钮 / 移动底栏
   ========================================================= */
.fab {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 50;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(to right, #2563eb, #4f46e5);
  border-radius: 9999px;
  box-shadow: var(--glow);
}

.fab:hover {
  opacity: 0.92;
}

.fab .ping {
  width: 10px;
  height: 10px;
}

.fab .ping-ring,
.fab .ping-dot {
  background: #6ee7b7;
}

.fab .ping-dot {
  width: 10px;
  height: 10px;
}

.mobile-bar {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(10, 10, 18, 0.95);
  backdrop-filter: blur(24px);
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  gap: 10px;
}

.mobile-bar .btn-secondary {
  flex: 1;
  padding: 10px 16px;
}

.mobile-bar .btn-primary {
  flex: 1.4;
  padding: 10px 16px;
  box-shadow: none;
}

@media (min-width: 768px) {
  .fab {
    display: flex;
  }

  .mobile-bar {
    display: none;
  }
}

/* =========================================================
   Toast 提示
   ========================================================= */
.toast {
  position: fixed;
  top: 72px;
  left: 50%;
  transform: translateX(-50%) translateY(-12px);
  z-index: 100;
  padding: 10px 16px;
  border-radius: 8px;
  background: #1e293b;
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: #e2e8f0;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  box-shadow: var(--card-shadow);
}

.toast.is-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}