/* ============================================================
   wgetcloud 全站共享样式表
   深色科技风：深藏青底色 + 靛蓝/紫罗兰渐变 + 青色点缀
   ============================================================ */

:root {
  /* 品牌色 */
  --color-bg: #0a0e27;
  --color-bg-alt: #0f1429;
  --color-surface: #131a35;
  --color-surface-2: #171f42;
  --color-border: rgba(148, 163, 200, 0.16);
  --color-border-strong: rgba(148, 163, 200, 0.3);

  --color-primary: #4f46e5;
  --color-primary-light: #6366f1;
  --color-secondary: #7c3aed;
  --color-accent: #06b6d4;

  --gradient-brand: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary-light) 100%);
  --gradient-text: linear-gradient(135deg, #818cf8 0%, #c084fc 50%, #22d3ee 100%);

  --color-text: #e6e9f5;
  --color-text-muted: #a3acc9;
  --color-text-faint: #6b7394;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --shadow-glow: 0 0 0 1px rgba(124, 58, 237, 0.18), 0 20px 60px -20px rgba(79, 70, 229, 0.45);
  --shadow-card: 0 10px 30px -12px rgba(0, 0, 0, 0.45);

  --container-width: 1180px;
  --header-height: 76px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background: radial-gradient(ellipse 120% 60% at 50% -10%, rgba(79, 70, 229, 0.22), transparent),
    var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

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

table {
  border-collapse: collapse;
  width: 100%;
}

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

/* ---------- 排版 ---------- */
h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.4rem);
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
}

h3 {
  font-size: 1.2rem;
}

p {
  color: var(--color-text-muted);
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-accent);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.28);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}

/* ---------- 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

main {
  display: block;
}

section {
  padding: 88px 0;
}

.section-head {
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-head p {
  margin-top: 14px;
  font-size: 1.05rem;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.96rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
  white-space: nowrap;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  opacity: 0.94;
}

.btn-outline {
  border: 1px solid var(--color-border-strong);
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.02);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.86rem;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(10, 14, 39, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
}

.brand img {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-links a {
  font-size: 0.94rem;
  color: var(--color-text-muted);
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a:hover,
.nav-links a[aria-current='page'] {
  color: var(--color-text);
}

.nav-links a[aria-current='page']::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -20px;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: var(--radius-pill);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

/* 移动端导航 */
@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    padding: 8px 24px 20px;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.22s ease;
  }

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

  .nav-links a {
    width: 100%;
    padding: 13px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-links a[aria-current='page']::after {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-right .btn {
    display: none;
  }
}

/* ---------- Hero ---------- */
.hero {
  padding: 84px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-copy h1 {
  margin: 18px 0 20px;
}

.hero-copy p {
  font-size: 1.08rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.hero-art {
  position: relative;
}

.hero-art img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 30px 60px rgba(79, 70, 229, 0.35));
}

@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero-art {
    order: -1;
  }
}

/* ---------- 数据信任条 ---------- */
.stats-bar {
  padding: 0 0 20px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 36px 0;
}

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

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-label {
  margin-top: 6px;
  font-size: 0.88rem;
  color: var(--color-text-faint);
}

@media (max-width: 760px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 卡片通用 ---------- */
.card {
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-surface-2) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-card);
}

.card-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(124, 58, 237, 0.14);
  margin-bottom: 18px;
}

.card-icon img {
  width: 24px;
  height: 24px;
}

.card h3 {
  margin-bottom: 10px;
}

.card p {
  font-size: 0.95rem;
}

/* 应用场景 / 核心优势 网格 */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* ---------- 节点分布 ---------- */
.regions-section {
  position: relative;
}

.regions-panel {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  overflow: hidden;
  padding: 40px;
}

.regions-panel .bg-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.5;
  pointer-events: none;
}

.regions-list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.region-item {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
}

.region-item .region-name {
  font-weight: 700;
}

.region-item .region-count {
  margin-top: 4px;
  font-size: 0.85rem;
  color: var(--color-accent);
}

@media (max-width: 760px) {
  .regions-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 价格卡片 ---------- */
.billing-toggle {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin: 0 auto 48px;
  width: fit-content;
  padding: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.billing-toggle button {
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: all 0.2s ease;
}

.billing-toggle button.is-active {
  background: var(--gradient-brand);
  color: #fff;
}

.badge-save {
  font-size: 0.7rem;
  background: rgba(6, 182, 212, 0.18);
  color: var(--color-accent);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-left: 6px;
}

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

.price-card {
  display: flex;
  flex-direction: column;
  position: relative;
}

.price-card.is-featured {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-glow);
}

.price-card .featured-tag {
  position: absolute;
  top: -14px;
  right: 24px;
  background: var(--gradient-brand);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 700;
}

.price-value {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 18px 0 6px;
}

.price-value .amount {
  font-size: 2.5rem;
  font-weight: 800;
}

.price-value .unit {
  color: var(--color-text-faint);
  font-size: 0.9rem;
}

.price-card ul {
  margin: 22px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.price-card li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.price-card li img {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}

@media (max-width: 900px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

/* 对比表 */
.compare-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.compare-table {
  min-width: 640px;
}

.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.92rem;
}

.compare-table thead th {
  background: var(--color-surface-2);
  font-size: 0.9rem;
  color: var(--color-text);
}

.compare-table tbody td:first-child {
  color: var(--color-text-muted);
}

.compare-table tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- 下载页 ---------- */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.platform-card {
  text-align: center;
}

.platform-card .card-icon {
  margin: 0 auto 16px;
}

.platform-card .version {
  font-size: 0.82rem;
  color: var(--color-text-faint);
  margin: 6px 0 20px;
}

@media (max-width: 900px) {
  .platform-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .platform-grid {
    grid-template-columns: 1fr;
  }
}

.steps-list {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.steps-list li {
  position: relative;
  padding-top: 46px;
}

.steps-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 0;
  left: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--gradient-brand);
  font-weight: 700;
}

.steps-list h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.steps-list p {
  font-size: 0.9rem;
}

@media (max-width: 760px) {
  .steps-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- FAQ ---------- */
.faq-category {
  margin-bottom: 46px;
}

.faq-category > h2 {
  margin-bottom: 20px;
  font-size: 1.3rem;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  background: var(--color-surface);
  overflow: hidden;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-weight: 600;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary .chevron {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform 0.2s ease;
  color: var(--color-text-faint);
}

.faq-item[open] summary .chevron {
  transform: rotate(180deg);
}

.faq-item .faq-answer {
  padding: 0 24px 22px;
  font-size: 0.94rem;
  color: var(--color-text-muted);
}

/* ---------- CTA 横幅 ---------- */
.cta-banner {
  border-radius: var(--radius-lg);
  background: var(--gradient-brand);
  padding: 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  margin-bottom: 12px;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
}

.cta-banner .btn-outline {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

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

/* ---------- 占位符标记 ---------- */
.placeholder-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fbbf24;
  border: 1px dashed rgba(251, 191, 36, 0.6);
  background: rgba(251, 191, 36, 0.08);
  padding: 1px 8px;
  border-radius: var(--radius-pill);
  margin-left: 8px;
  vertical-align: middle;
}

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

.testimonial-card p.quote {
  font-size: 0.96rem;
  color: var(--color-text);
  margin-bottom: 18px;
}

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

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--color-text-faint);
}

@media (max-width: 900px) {
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 64px 0 32px;
  background: var(--color-bg-alt);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand p {
  margin: 14px 0 18px;
  font-size: 0.9rem;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.9rem;
  margin-bottom: 16px;
  color: var(--color-text);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--color-text-faint);
}

.social-icons {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.social-icons a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.social-icons img {
  width: 17px;
  height: 17px;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  section {
    padding: 64px 0;
  }
}

/* ---------- 内页通用 Hero（价格/下载/FAQ/关于） ---------- */
.page-hero {
  padding: 64px 0 20px;
  text-align: center;
}

.page-hero .eyebrow {
  margin-bottom: 16px;
}

.page-hero p {
  max-width: 560px;
  margin: 16px auto 0;
}

/* ---------- 关于我们页 ---------- */
.about-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-block + .about-block {
  margin-top: 72px;
}

@media (max-width: 860px) {
  .about-block {
    grid-template-columns: 1fr;
  }
}

.notice-box {
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.notice-box h3 {
  color: var(--color-text);
  margin-bottom: 10px;
  font-size: 1rem;
}

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

@media (max-width: 760px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- 滚动淡入动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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