/* ================= 密信IM企业版 官网样式 ================= */
:root {
  --blue: #245cf4;
  --blue-dark: #1a47c8;
  --blue-light: #eef3fe;
  --blue-border: #d7e2fd;
  --ink: #0e1e42;
  --ink-2: #47536b;
  --ink-3: #8592ab;
  --bg: #ffffff;
  --bg-gray: #f6f8fc;
  --radius: 14px;
  --shadow-sm: 0 2px 10px rgba(18, 42, 100, .06);
  --shadow-md: 0 10px 34px rgba(18, 42, 100, .10);
  --shadow-lg: 0 24px 60px rgba(18, 42, 100, .14);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: 10px;
  font-size: 14px; font-weight: 600; cursor: pointer;
  transition: all .2s ease; border: 1px solid transparent; white-space: nowrap;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 6px 16px rgba(36, 92, 244, .28); }
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); box-shadow: 0 10px 22px rgba(36, 92, 244, .34); }
.btn-outline { border-color: var(--blue); color: var(--blue); background: #fff; }
.btn-outline:hover { background: var(--blue-light); transform: translateY(-1px); }
.btn-ghost { color: var(--ink-2); }
.btn-ghost:hover { color: var(--blue); }
.btn-lg { padding: 14px 28px; font-size: 15px; border-radius: 12px; }
.btn-block { width: 100%; }

/* ---------- 导航 ---------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, .85); backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent; transition: all .25s ease;
}
.navbar.scrolled { border-bottom-color: #e8edf6; box-shadow: var(--shadow-sm); }
.nav-inner { display: flex; align-items: center; height: 64px; gap: 32px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { display: flex; }
.brand-name { font-size: 19px; font-weight: 800; letter-spacing: .5px; display: flex; align-items: center; gap: 8px; }
.brand-name em { font-style: normal; color: var(--blue); }
.brand-tag {
  font-size: 11px; font-weight: 600; color: var(--blue);
  background: var(--blue-light); border: 1px solid var(--blue-border);
  padding: 2px 8px; border-radius: 6px; letter-spacing: 0;
}
.brand-tag.dark { background: rgba(36,92,244,.08); }
.nav-links { display: flex; gap: 28px; flex: 1; }
.nav-links a { font-size: 14px; color: var(--ink-2); font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--blue); }
.nav-actions { display: flex; gap: 10px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: .25s; }

/* ---------- Hero ---------- */
.hero {
  padding: 150px 0 90px;
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(36, 92, 244, .10), transparent 60%),
    radial-gradient(700px 380px at 5% 10%, rgba(36, 92, 244, .07), transparent 60%),
    linear-gradient(180deg, #fbfdff 0%, #f3f7ff 100%);
  overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.hero-badge {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  background: var(--blue-light); color: var(--blue);
  font-size: 13px; font-weight: 600; margin-bottom: 20px;
  border: 1px solid var(--blue-border);
}
.hero-text h1 { font-size: 44px; line-height: 1.28; font-weight: 800; letter-spacing: 1px; margin-bottom: 18px; }
.text-blue { color: var(--blue); }
.hero-desc { font-size: 16px; color: var(--ink-2); max-width: 480px; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 14px; margin-bottom: 40px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 36px; }
.stat strong { display: block; font-size: 22px; color: var(--blue); font-weight: 800; }
.stat span { font-size: 13px; color: var(--ink-3); }

/* ---------- Hero 产品示意 ---------- */
.hero-visual { position: relative; }
.mock-window {
  background: #fff; border-radius: 16px; overflow: hidden;
  box-shadow: var(--shadow-lg); border: 1px solid #e8edf6;
}
.mock-titlebar {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px; background: #f7f9fd; border-bottom: 1px solid #edf1f8;
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ff5f57; } .dot.yellow { background: #febc2e; } .dot.green { background: #28c840; }
.mock-url {
  margin-left: 10px; font-size: 11px; color: var(--ink-3);
  background: #eef2fa; padding: 2px 12px; border-radius: 6px;
}
.mock-body { display: flex; height: 330px; }
.mock-sidebar { width: 128px; background: #f7f9fd; border-right: 1px solid #edf1f8; padding: 14px 10px; }
.mock-logo { width: 26px; height: 26px; border-radius: 7px; background: var(--blue); margin: 0 6px 14px; }
.mock-nav-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--ink-2); padding: 8px 10px;
  border-radius: 8px; margin-bottom: 4px; font-weight: 500;
}
.mock-nav-item.active { background: var(--blue-light); color: var(--blue); }
.mock-main { flex: 1; padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; overflow: hidden; }
.mock-chat-header { display: flex; align-items: center; gap: 10px; padding-bottom: 10px; border-bottom: 1px solid #edf1f8; }
.mock-chat-header b { font-size: 13px; display: block; }
.mock-chat-header small { font-size: 11px; color: var(--ink-3); }
.mock-avatar { width: 30px; height: 30px; border-radius: 50%; background: linear-gradient(135deg, #245cf4, #6a94ff); }
.mock-msg { max-width: 76%; padding: 8px 12px; border-radius: 10px; font-size: 12px; line-height: 1.5; }
.mock-msg.left { background: #f2f5fb; color: var(--ink); align-self: flex-start; border-top-left-radius: 3px; }
.mock-msg.right { background: var(--blue); color: #fff; align-self: flex-end; border-top-right-radius: 3px; }
.mock-file-card {
  display: flex; align-items: center; gap: 10px;
  background: #f7f9fd; border: 1px solid var(--blue-border);
  border-radius: 10px; padding: 10px 12px; align-self: flex-start; width: 76%;
}
.mock-file-card .ico { width: 22px; height: 22px; color: var(--blue); }
.mock-file-info b { font-size: 12px; display: block; }
.mock-file-info small { font-size: 11px; color: var(--ink-3); }

.float-card {
  position: absolute; display: flex; align-items: center; gap: 10px;
  background: #fff; border-radius: 12px; padding: 12px 16px;
  box-shadow: var(--shadow-md); border: 1px solid #e8edf6;
  font-size: 12px; animation: floaty 4s ease-in-out infinite;
}
.float-card b { display: block; font-size: 13px; }
.float-card small { color: var(--ink-3); }
.float-card .ico { width: 26px; height: 26px; color: var(--blue); }
.card-group { left: -28px; bottom: 60px; }
.card-safe { right: -22px; top: 42px; animation-delay: 1.4s; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

/* ---------- 图标 ---------- */
.ico { display: inline-block; width: 16px; height: 16px; flex: none; background: currentColor;
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  -webkit-mask-position: center; mask-position: center;
  -webkit-mask-size: contain; mask-size: contain;
}
.ico-chat { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M21 12a8 8 0 01-8 8H4l2.2-2.6A8 8 0 1121 12z' stroke-linejoin='round'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M21 12a8 8 0 01-8 8H4l2.2-2.6A8 8 0 1121 12z' stroke-linejoin='round'/%3E%3C/svg%3E"); }
.ico-group { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Ccircle cx='9' cy='8' r='3.2'/%3E%3Cpath d='M3.5 19c.6-3 2.8-4.6 5.5-4.6s4.9 1.6 5.5 4.6M15.5 5.4a3.2 3.2 0 010 5.9M17.5 14.7c1.8.7 2.8 2 3 4.3' stroke-linecap='round'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Ccircle cx='9' cy='8' r='3.2'/%3E%3Cpath d='M3.5 19c.6-3 2.8-4.6 5.5-4.6s4.9 1.6 5.5 4.6M15.5 5.4a3.2 3.2 0 010 5.9M17.5 14.7c1.8.7 2.8 2 3 4.3' stroke-linecap='round'/%3E%3C/svg%3E"); }
.ico-file { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M13 3H7a1 1 0 00-1 1v16a1 1 0 001 1h10a1 1 0 001-1V8l-5-5z' stroke-linejoin='round'/%3E%3Cpath d='M13 3v5h5M9 13h6M9 16.5h4' stroke-linecap='round'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M13 3H7a1 1 0 00-1 1v16a1 1 0 001 1h10a1 1 0 001-1V8l-5-5z' stroke-linejoin='round'/%3E%3Cpath d='M13 3v5h5M9 13h6M9 16.5h4' stroke-linecap='round'/%3E%3C/svg%3E"); }
.ico-coop { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='3' y='4' width='18' height='16' rx='2'/%3E%3Cpath d='M3 9h18M8 4v5M8 13l2 2 4-4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='3' y='4' width='18' height='16' rx='2'/%3E%3Cpath d='M3 9h18M8 4v5M8 13l2 2 4-4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); }
.ico-code { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='3' y='3' width='7' height='7' rx='1'/%3E%3Crect x='14' y='3' width='7' height='7' rx='1'/%3E%3Crect x='3' y='14' width='7' height='7' rx='1'/%3E%3Cpath d='M14 14h3v3h-3zM21 14v3M17.5 21H21v-3.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='3' y='3' width='7' height='7' rx='1'/%3E%3Crect x='14' y='3' width='7' height='7' rx='1'/%3E%3Crect x='3' y='14' width='7' height='7' rx='1'/%3E%3Cpath d='M14 14h3v3h-3zM21 14v3M17.5 21H21v-3.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); }
.ico-shield { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M12 3l7.5 3v5.5c0 4.6-3.2 7.9-7.5 9.5-4.3-1.6-7.5-4.9-7.5-9.5V6L12 3z' stroke-linejoin='round'/%3E%3Cpath d='M9 11.5l2 2 4-4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M12 3l7.5 3v5.5c0 4.6-3.2 7.9-7.5 9.5-4.3-1.6-7.5-4.9-7.5-9.5V6L12 3z' stroke-linejoin='round'/%3E%3Cpath d='M9 11.5l2 2 4-4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); }
.ico-android { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8'%3E%3Cpath d='M7 9.5L4 7v10l3-2.5M17 9.5L20 7v10l-3-2.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3Cpath d='M12 5.5c-3.1 0-5.5 2.3-5.5 5.5v4.2c0 .8.6 1.3 1.3 1.3h8.4c.7 0 1.3-.5 1.3-1.3V11c0-3.2-2.4-5.5-5.5-5.5zM9.2 5.7L8 3.5M14.8 5.7l1.2-2.2' stroke-linecap='round'/%3E%3Cpath d='M9.7 10.8h.01M14.3 10.8h.01M8.5 14h7' stroke-linecap='round'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8'%3E%3Cpath d='M7 9.5L4 7v10l3-2.5M17 9.5L20 7v10l-3-2.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3Cpath d='M12 5.5c-3.1 0-5.5 2.3-5.5 5.5v4.2c0 .8.6 1.3 1.3 1.3h8.4c.7 0 1.3-.5 1.3-1.3V11c0-3.2-2.4-5.5-5.5-5.5zM9.2 5.7L8 3.5M14.8 5.7l1.2-2.2' stroke-linecap='round'/%3E%3Cpath d='M9.7 10.8h.01M14.3 10.8h.01M8.5 14h7' stroke-linecap='round'/%3E%3C/svg%3E"); }

/* ---------- 通用 Section ---------- */
.section { padding: 90px 0; }
.section-gray { background: var(--bg-gray); }
.section-head { text-align: center; max-width: 620px; margin: 0 auto 54px; }
.section-tag {
  display: inline-block; padding: 5px 14px; border-radius: 999px;
  background: var(--blue-light); color: var(--blue);
  font-size: 13px; font-weight: 600; margin-bottom: 14px;
  border: 1px solid var(--blue-border);
}
.section-tag.light { background: rgba(255,255,255,.14); color: #d3e1ff; border-color: rgba(255,255,255,.22); }
.section-head h2 { font-size: 32px; font-weight: 800; margin-bottom: 12px; letter-spacing: .5px; }
.section-head p { color: var(--ink-2); font-size: 15px; }

/* ---------- 功能卡片 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature-card {
  background: #fff; border: 1px solid #e8edf6; border-radius: var(--radius);
  padding: 30px 26px; transition: all .25s ease;
}
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--blue-border); }
.feature-icon {
  width: 50px; height: 50px; border-radius: 13px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.feature-icon .ico { width: 24px; height: 24px; color: #fff; }
.fi-chat { background: linear-gradient(135deg, #245cf4, #5c85f8); }
.fi-group { background: linear-gradient(135deg, #0ea5e9, #38bdf8); }
.fi-file { background: linear-gradient(135deg, #6366f1, #818cf8); }
.fi-coop { background: linear-gradient(135deg, #0891b2, #22d3ee); }
.fi-code { background: linear-gradient(135deg, #1e40af, #3b82f6); }
.fi-shield { background: linear-gradient(135deg, #0f2a6e, #245cf4); }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-card > p { font-size: 14px; color: var(--ink-2); margin-bottom: 14px; }
.feature-card ul { list-style: none; }
.feature-card li { font-size: 13px; color: var(--ink-2); padding: 4px 0 4px 18px; position: relative; }
.feature-card li::before {
  content: ""; position: absolute; left: 0; top: 11px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--blue);
}

/* ---------- 私有化部署 ---------- */
.deploy-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.deploy-card {
  background: #fff; border: 1px solid #e8edf6; border-radius: var(--radius);
  padding: 30px 24px; transition: all .25s ease;
}
.deploy-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--blue-border); }
.deploy-num {
  display: inline-block; font-size: 13px; font-weight: 800; color: var(--blue);
  background: var(--blue-light); border: 1px solid var(--blue-border);
  padding: 3px 10px; border-radius: 999px; margin-bottom: 16px;
}
.deploy-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.deploy-card p { font-size: 13px; color: var(--ink-2); }

/* ---------- 管理后台体验 ---------- */
.console-box {
  background: linear-gradient(135deg, #0c2358 0%, #1a47c8 55%, #245cf4 100%);
  border-radius: 24px; padding: 60px 56px;
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 50px; align-items: start;
  box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.console-box::before, .console-box::after {
  content: ""; position: absolute; border-radius: 50%;
  background: rgba(255, 255, 255, .06);
}
.console-box::before { width: 320px; height: 320px; right: -90px; top: -120px; }
.console-box::after { width: 200px; height: 200px; left: -60px; bottom: -80px; }
.console-text { color: #fff; position: relative; z-index: 1; padding-top: 8px; }
.console-text h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; }
.console-text > p { color: rgba(255, 255, 255, .78); font-size: 15px; max-width: 400px; margin-bottom: 22px; }
.console-tip {
  display: flex; align-items: center; gap: 10px;
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 10px; padding: 12px 14px; font-size: 13px; color: rgba(255,255,255,.85);
}
.console-tip .ico { color: #9db9ff; }

.console-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; position: relative; z-index: 1; }
.console-card {
  background: #fff; border-radius: 16px; padding: 24px;
  transition: transform .25s ease;
}
.console-card:hover { transform: translateY(-4px); }
.console-card-head { margin-bottom: 18px; }
.console-badge {
  display: inline-block; font-size: 11px; font-weight: 700;
  background: var(--blue-light); color: var(--blue);
  padding: 3px 10px; border-radius: 999px; margin-bottom: 10px;
}
.console-badge.primary { background: var(--blue); color: #fff; }
.console-card-head h3 { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.console-card-head p { font-size: 12px; color: var(--ink-3); }

.cred-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 18px; }
.cred-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cred-item label { display: block; font-size: 11px; color: var(--ink-3); margin-bottom: 4px; }
.cred-value {
  display: flex; align-items: center; gap: 6px;
  background: #f5f8fe; border: 1px solid #e5ecfb; border-radius: 8px;
  padding: 7px 8px 7px 12px;
}
.cred-text {
  flex: 1; font-size: 12.5px; font-weight: 600; color: var(--ink);
  font-family: "SF Mono", Menlo, Consolas, monospace;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.cred-text.url { font-size: 11.5px; }
.copy-btn {
  flex: none; font-size: 11px; font-weight: 600; color: var(--blue);
  background: var(--blue-light); border: none; border-radius: 6px;
  padding: 4px 10px; cursor: pointer; transition: all .2s; font-family: inherit;
}
.copy-btn:hover { background: var(--blue); color: #fff; }
.copy-btn.copied { background: #16a34a; color: #fff; }

/* ---------- 下载区 ---------- */
.download-box {
  background: linear-gradient(135deg, #0c2358 0%, #1a47c8 55%, #245cf4 100%);
  border-radius: 24px; padding: 60px 56px;
  display: grid; grid-template-columns: 1fr 1.15fr; gap: 50px; align-items: center;
  box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.download-box::before, .download-box::after {
  content: ""; position: absolute; border-radius: 50%;
  background: rgba(255, 255, 255, .06);
}
.download-box::before { width: 320px; height: 320px; right: -90px; top: -120px; }
.download-box::after { width: 200px; height: 200px; left: -60px; bottom: -80px; }
.download-text { color: #fff; position: relative; z-index: 1; }
.download-text h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; }
.download-text p { color: rgba(255, 255, 255, .78); font-size: 15px; max-width: 380px; }
.download-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; position: relative; z-index: 1; }
.dl-card {
  background: #fff; border-radius: 16px; padding: 28px 24px; text-align: center;
  transition: transform .25s ease;
}
.dl-card:hover { transform: translateY(-4px); }
.dl-icon {
  width: 62px; height: 62px; border-radius: 16px; margin: 0 auto 16px;
  background: var(--blue-light); display: flex; align-items: center; justify-content: center;
}
.dl-icon .ico { width: 30px; height: 30px; color: var(--blue); }
.dl-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.dl-card > p { font-size: 13px; color: var(--ink-2); margin-bottom: 18px; min-height: 40px; }
.dl-version { display: block; margin-top: 10px; font-size: 12px; color: var(--ink-3); }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid #edf1f8; background: #fbfcfe; }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; padding: 50px 24px 34px; flex-wrap: wrap; }
.footer-brand p { color: var(--ink-3); font-size: 13px; margin-top: 10px; max-width: 280px; }
.footer-links { display: flex; gap: 64px; }
.footer-links h4 { font-size: 14px; margin-bottom: 12px; }
.footer-links a { display: block; font-size: 13px; color: var(--ink-2); padding: 4px 0; transition: color .2s; }
.footer-links a:hover { color: var(--blue); }
.footer-copy { text-align: center; font-size: 12px; color: var(--ink-3); padding: 16px; border-top: 1px solid #f0f3f9; }

/* ---------- 微信内打开引导遮罩 ---------- */
.wx-mask {
  position: fixed; inset: 0; z-index: 9998;
  background: rgba(10, 22, 50, .82);
  display: flex; flex-direction: column; align-items: flex-end;
  padding: 18px 26px 0 0;
  opacity: 0; transition: opacity .3s ease;
}
.wx-mask.show { opacity: 1; }
.wx-mask-arrow {
  width: 66px; height: 90px; margin-right: 6px;
  animation: wxNudge 1.6s ease-in-out infinite;
}
@keyframes wxNudge { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(6px, -6px); } }
.wx-mask-tip {
  margin-top: 10px; margin-right: -6px;
  background: #fff; border-radius: 14px; padding: 20px 24px;
  max-width: 300px; text-align: center; box-shadow: var(--shadow-lg);
}
.wx-mask-tip h4 { font-size: 16px; font-weight: 800; margin-bottom: 8px; }
.wx-mask-tip p { font-size: 13px; color: var(--ink-2); line-height: 1.7; }
.wx-mask-tip p b { color: var(--blue); }
.wx-mask-close {
  margin-top: 14px; font-size: 12px; color: rgba(255, 255, 255, .7);
  background: none; border: 1px solid rgba(255, 255, 255, .35);
  padding: 7px 18px; border-radius: 999px; cursor: pointer;
  align-self: center; font-family: inherit;
}

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: 60px; }
  .hero-text h1 { font-size: 34px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .deploy-grid { grid-template-columns: repeat(2, 1fr); }
  .console-box { grid-template-columns: 1fr; padding: 44px 32px; }
  .download-box { grid-template-columns: 1fr; padding: 44px 32px; }
}
@media (max-width: 680px) {
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: flex; }
  .navbar.open .nav-links {
    display: flex; flex-direction: column; position: absolute;
    top: 64px; left: 0; right: 0; background: #fff;
    padding: 16px 24px 20px; gap: 14px; box-shadow: var(--shadow-md);
  }
  .hero { padding: 120px 0 70px; }
  .hero-text h1 { font-size: 28px; }
  .hero-stats { gap: 22px; }
  .float-card { display: none; }
  .mock-body { height: 280px; }
  .mock-sidebar { width: 104px; }
  .feature-grid { grid-template-columns: 1fr; }
  .deploy-grid { grid-template-columns: 1fr; }
  .console-cards { grid-template-columns: 1fr; }
  .download-cards { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 26px; }
  .console-box, .download-box { padding: 36px 22px; }
  .cred-row { grid-template-columns: 1fr; }
  .footer-links { gap: 40px; }
}