/* ===== VPSCC 全局样式 ===== */

/* 基础重置 */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', 'Instrument Sans', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--bg);
  color: var(--text);
  transition: background 0.25s, color 0.25s;
}

/* ===== 主题变量 — 亮色（默认） ===== */
:root {
  --bg: #ffffff;
  --bg-alt: #f9fafb;
  --bg-alt2: #f3f4f6;
  --surface: #ffffff;
  --surface-hover: #f9fafb;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --text: #111827;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --text-inverse: #ffffff;
  --primary: #0b4f93;
  --primary-light: #1d56b4;
  --primary-hover: #0a4480;
  --primary-bg: #eff6ff;
  --primary-bg-hover: #dbeafe;
  --primary-text: #1d4ed8;
  --shadow: rgba(0,0,0,0.08);
  --shadow-lg: rgba(11,79,147,0.1);
  --navbar-bg: rgba(255,255,255,0.92);
  --navbar-border: rgba(229,231,235,0.8);
  --card-bg: #ffffff;
  --card-border: #e5e7eb;
  --footer-bg: #0f172a;
  --hero-bg: linear-gradient(135deg, #f8faff 0%, #f0f7ff 100%);
  --gradient-card: linear-gradient(135deg, #f0f7ff 0%, #e8f0fe 100%);
  --accordion-hover: #f9fafb;
  --table-head: #f9fafb;
  --table-row-hover: #f9fafb;
  --table-row-border: #f3f4f6;
  --input-bg: #fff;
  --input-border: #d1d5db;
  --badge-green-bg: #dcfce7;
  --badge-green-text: #166534;
  --badge-blue-bg: #dbeafe;
  --badge-blue-text: #1d4ed8;
  --badge-red-bg: #fee2e2;
  --badge-red-text: #991b1b;
  --badge-yellow-bg: #fef9c3;
  --badge-yellow-text: #854d0e;
  --badge-gray-bg: #f3f4f6;
  --badge-gray-text: #374151;
  --mobile-menu-bg: #fff;
  --btn-ghost-hover: #eff6ff;
  --hamburger-hover: #f3f4f6;
  --section-badge-bg: #eff6ff;
  --section-badge-text: #1d4ed8;

  /* 色阶保留 */
  --blue-50:  #eff6ff;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-300: #93c5fd;
  --blue-600: #1d56b4;
  --blue-700: #0b4f93;
  --blue-800: #1e3a5f;
  --blue-900: #172554;
  --gray-50:  #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --green-500: #22c55e;
  --red-500:   #ef4444;
  --yellow-500:#f59e0b;
}

/* ===== 深色主题 ===== */
[data-theme="dark"] {
  --bg: #0b0f1a;
  --bg-alt: #101624;
  --bg-alt2: #151c2e;
  --surface: #131825;
  --surface-hover: #1a2035;
  --border: #1e293b;
  --border-light: rgba(255,255,255,0.06);
  --text: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-inverse: #0b0f1a;
  --primary: #60a5fa;
  --primary-light: #818cf8;
  --primary-hover: #93bbfd;
  --primary-bg: rgba(96,165,250,0.1);
  --primary-bg-hover: rgba(96,165,250,0.18);
  --primary-text: #93c5fd;
  --shadow: rgba(0,0,0,0.3);
  --shadow-lg: rgba(0,0,0,0.4);
  --navbar-bg: rgba(11,15,26,0.92);
  --navbar-border: rgba(30,41,59,0.8);
  --card-bg: #131825;
  --card-border: #1e293b;
  --footer-bg: #080c15;
  --hero-bg: linear-gradient(135deg, #0d1220 0%, #0f1729 100%);
  --gradient-card: linear-gradient(135deg, #131825 0%, #1a2035 100%);
  --accordion-hover: #1a2035;
  --table-head: #151c2e;
  --table-row-hover: #1a2035;
  --table-row-border: rgba(255,255,255,0.04);
  --input-bg: #151c2e;
  --input-border: #2d3748;
  --badge-green-bg: rgba(34,197,94,0.15);
  --badge-green-text: #4ade80;
  --badge-blue-bg: rgba(59,130,246,0.15);
  --badge-blue-text: #93c5fd;
  --badge-red-bg: rgba(239,68,68,0.15);
  --badge-red-text: #fca5a5;
  --badge-yellow-bg: rgba(245,158,11,0.15);
  --badge-yellow-text: #fcd34d;
  --badge-gray-bg: rgba(255,255,255,0.08);
  --badge-gray-text: #94a3b8;
  --mobile-menu-bg: #131825;
  --btn-ghost-hover: rgba(96,165,250,0.1);
  --hamburger-hover: #1a2035;
  --section-badge-bg: rgba(96,165,250,0.12);
  --section-badge-text: #93c5fd;
}

/* ===== 渐变工具 ===== */
.gradient-hero {
  background: linear-gradient(135deg, #0b4f93 0%, #1356b0 35%, #1a6bc4 65%, #0d5aa7 100%);
}
.gradient-text {
  background: linear-gradient(135deg, #60a5fa, #a5f3fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.gradient-card {
  background: var(--gradient-card);
}

/* ===== 主题切换按钮 ===== */
.theme-toggle-btn {
  width: 38px; height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  flex-shrink: 0;
}
.theme-toggle-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
}

/* ===== Logo ===== */
.nav-logo-img {
  width: 30px; height: 30px;
  object-fit: contain;
}

/* ===== 导航 ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
  background: var(--navbar-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--navbar-border);
  transition: box-shadow 0.2s, background 0.25s;
}
.navbar.scrolled { box-shadow: 0 1px 12px var(--shadow); }
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.nav-logo-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px; color: #fff;
}
.nav-logo-text {
  font-size: 20px; font-weight: 700; color: var(--text);
  letter-spacing: -0.3px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  display: block;
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--primary);
  background: var(--primary-bg);
}
.nav-links a.active { font-weight: 600; }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.btn-ghost {
  padding: 7px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
}
.btn-ghost:hover { color: var(--primary); background: var(--btn-ghost-hover); }
.btn-primary {
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  transition: opacity 0.15s;
}
.btn-primary:hover { opacity: 0.88; }
.nav-hamburger {
  display: none;
  padding: 8px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: 8px;
  color: var(--text-secondary);
  transition: background 0.15s;
}
.nav-hamburger:hover { background: var(--hamburger-hover); }
.nav-hamburger svg {
  display: block;
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-hamburger[aria-expanded="true"] svg {
  transform: rotate(90deg);
}

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: var(--mobile-menu-bg);
  border-bottom: 1px solid var(--border);
  z-index: 99;
  padding: 12px 16px 16px;
  box-shadow: 0 8px 28px var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  pointer-events: none;
  transition: opacity 0.24s ease, transform 0.24s ease, visibility 0s linear 0.24s;
}
.mobile-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
  transition: opacity 0.24s ease, transform 0.24s ease, visibility 0s linear 0s;
}
.mobile-menu a {
  display: block;
  padding: 10px 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  border-radius: 8px;
}
.mobile-menu a:hover, .mobile-menu a.active {
  color: var(--primary);
  background: var(--primary-bg);
}
.mobile-menu-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.mobile-menu-actions a {
  flex: 1;
  text-align: center;
  padding: 10px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
}

/* ===== 页面主体 ===== */
.page-body { padding-top: 64px; }

/* ===== 页脚 ===== */
.footer {
  background: var(--footer-bg);
  color: #94a3b8;
  padding: 56px 0 32px;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand-name {
  font-size: 20px; font-weight: 700;
  color: #fff;
  display: flex; align-items: center; gap: 8px;
  text-decoration: none;
  margin-bottom: 12px;
}
.footer-brand-desc {
  font-size: 13px; line-height: 1.7;
  max-width: 240px; margin-bottom: 16px;
}
.footer-disclaimer {
  font-size: 11px; line-height: 1.6;
  color: #64748b;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  padding: 10px 12px;
  max-width: 260px;
}
.footer-col-title {
  font-size: 13px; font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 14px;
  letter-spacing: 0.3px;
}
.footer-links {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 10px;
}
.footer-links a {
  font-size: 13px;
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.15s;
}
.footer-links a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copyright {
  font-size: 13px;
}
.footer-socials {
  display: flex;
  align-items: center;
  gap: 16px;
}
.footer-socials a {
  font-size: 13px;
  color: #94a3b8;
  text-decoration: none;
  display: flex; align-items: center; gap: 6px;
  transition: color 0.15s;
}
.footer-socials a:hover { color: #fff; }
.footer-logo-img {
  width: 26px; height: 26px;
  object-fit: contain;
}

/* ===== 通用组件 ===== */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--section-badge-bg);
  color: var(--section-badge-text);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 9999px;
  margin-bottom: 16px;
  letter-spacing: 0.2px;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
  color: var(--text);
  margin: 0 0 16px;
}
.section-subtitle {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 80px 0; }
.section-lg { padding: 96px 0; }
.section-sm { padding: 56px 0; }
.text-center { text-align: center; }
.mb-12 { margin-bottom: 48px; }
.mb-16 { margin-bottom: 64px; }

/* ===== 卡片 ===== */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 28px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px var(--shadow-lg);
}
.card-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
}
.card-desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
  white-space: nowrap;
}
.btn-lg { padding: 13px 32px; font-size: 16px; }
.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 8px; }
.btn-blue { background: var(--primary); color: var(--text-inverse); }
.btn-blue:hover { opacity: 0.92; }
.btn-white { background: var(--surface); color: var(--primary); }
.btn-white:hover { background: var(--primary-bg); }
.btn-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.1); }
.btn-gray { background: var(--bg-alt2); color: var(--text); }
.btn-gray:hover { background: var(--border); }
.btn-dark { background: var(--text); color: var(--bg); }
.btn-dark:hover { opacity: 0.88; }

/* ===== 标签/徽标 ===== */
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 10px;
  border-radius: 9999px;
  font-size: 12px; font-weight: 600;
}
.badge-green { background: var(--badge-green-bg); color: var(--badge-green-text); }
.badge-blue { background: var(--badge-blue-bg); color: var(--badge-blue-text); }
.badge-red { background: var(--badge-red-bg); color: var(--badge-red-text); }
.badge-yellow { background: var(--badge-yellow-bg); color: var(--badge-yellow-text); }
.badge-gray { background: var(--badge-gray-bg); color: var(--badge-gray-text); }

/* ===== 状态指示点 ===== */
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.status-dot.online { background: #22c55e; box-shadow: 0 0 0 2px var(--badge-green-bg); }
.status-dot.offline { background: #ef4444; box-shadow: 0 0 0 2px var(--badge-red-bg); }
.status-dot.degraded { background: #f59e0b; box-shadow: 0 0 0 2px var(--badge-yellow-bg); }
.status-dot.pulse { animation: pulse-ring 1.5s infinite; }
@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(34,197,94,0.5); }
  70%  { box-shadow: 0 0 0 5px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

/* ===== 分割线 ===== */
.divider { border: none; border-top: 1px solid var(--border); margin: 0; }

/* ===== 响应式网格 ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ===== 返回顶部 ===== */
#back-to-top {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 40px; height: 40px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 50;
  box-shadow: 0 4px 12px var(--shadow-lg);
}
#back-to-top.visible { opacity: 1; pointer-events: auto; }
#back-to-top:hover { transform: translateY(-2px); }

/* ===== 页面 Hero Banner ===== */
.page-hero {
  padding: 48px 0 40px;
  border-bottom: 1px solid var(--border);
  background: var(--hero-bg);
}
.page-hero-breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--text-tertiary);
  margin-bottom: 14px;
}
.page-hero-breadcrumb a { color: var(--text-secondary); text-decoration: none; }
.page-hero-breadcrumb a:hover { color: var(--primary); }
.page-hero-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
  margin: 0 0 12px;
}
.page-hero-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
}

/* ===== 手风琴 FAQ ===== */
.accordion-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--card-bg);
}
.accordion-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  gap: 16px;
}
.accordion-btn:hover { background: var(--accordion-hover); }
.accordion-icon {
  flex-shrink: 0;
  width: 20px; height: 20px;
  color: var(--text-tertiary);
  transition: transform 0.25s;
}
.accordion-item.open .accordion-icon { transform: rotate(180deg); }
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.accordion-body.open { max-height: 600px; }
.accordion-content {
  padding: 0 22px 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ===== 表格 ===== */
.table-wrap { overflow-x: auto; border-radius: 12px; border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; background: var(--card-bg); }
thead { background: var(--table-head); }
th { padding: 14px 18px; font-size: 12px; font-weight: 600; color: var(--text-secondary); text-align: left; letter-spacing: 0.5px; text-transform: uppercase; border-bottom: 1px solid var(--border); }
td { padding: 14px 18px; font-size: 14px; color: var(--text); border-bottom: 1px solid var(--table-row-border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--table-row-hover); }

/* ===== 表单 ===== */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  border: 1.5px solid var(--input-border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: inherit;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(96,165,250,0.15);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-tertiary); }
.form-textarea { resize: vertical; min-height: 120px; }

/* ===== 通用弹窗 ===== */
.vpscc-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.22s ease;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
.vpscc-overlay.show { opacity: 1; }
.vpscc-modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px 24px;
  max-width: 360px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.22);
  transform: scale(0.92) translateY(12px);
  transition: transform 0.26s cubic-bezier(0.34, 1.4, 0.64, 1), opacity 0.22s ease;
  opacity: 0;
  text-align: center;
}
.vpscc-overlay.show .vpscc-modal {
  transform: scale(1) translateY(0);
  opacity: 1;
}
.vpscc-modal-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 24px;
}
.vpscc-modal-icon.warn  { background: rgba(245,158,11,0.12); color: #f59e0b; }
.vpscc-modal-icon.info  { background: rgba(37,99,235,0.10);  color: #2563eb; }
.vpscc-modal-icon.error { background: rgba(239,68,68,0.10);  color: #ef4444; }
.vpscc-modal-icon.ok    { background: rgba(34,197,94,0.10);  color: #22c55e; }
.vpscc-modal-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
}
.vpscc-modal-body {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0 0 24px;
}
.vpscc-modal-btns {
  display: flex;
  gap: 10px;
}
.vpscc-modal-btns button {
  flex: 1;
  padding: 10px 16px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s, transform 0.12s;
  font-family: inherit;
}
.vpscc-modal-btns button:hover  { opacity: 0.88; }
.vpscc-modal-btns button:active { transform: scale(0.97); }
.vpscc-btn-cancel {
  background: var(--bg-alt2, #f3f4f6);
  color: var(--text-secondary);
}
.vpscc-btn-confirm {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37,99,235,0.22);
}
.vpscc-btn-confirm.danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  box-shadow: 0 2px 8px rgba(239,68,68,0.22);
}
@media (max-width: 480px) {
  .vpscc-modal { padding: 28px 20px 20px; border-radius: 14px; }
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .nav-links, .nav-actions { display: none; }
  .nav-hamburger { display: flex; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .container { padding: 0 16px; }
  /* 移动端显示主题切换 */
  .mobile-menu .theme-toggle-btn { display: flex; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .btn-lg { padding: 12px 24px; font-size: 15px; }
}