:root {
  --blue: #0a59f7;          /* 品牌蓝 */
  --blue-hover: #0047d6;
  --blue-soft: #e9f0fe;
  --blue-softer: #f3f7ff;
  --text: #182431;
  --text-2: rgba(24, 36, 49, .62);
  --text-3: rgba(24, 36, 49, .42);
  --bg: #ffffff;
  --gray: #f1f3f5;
  --gray-2: #e5e8ec;
  --line: rgba(24, 36, 49, .08);
  --green: #17b26a;
  --radius: 24px;
  --radius-sm: 16px;
  --max: 1200px;
  --shadow-sm: 0 1px 2px rgba(24,36,49,.04), 0 4px 12px rgba(24,36,49,.04);
  --shadow: 0 2px 4px rgba(24,36,49,.03), 0 12px 32px rgba(24,36,49,.07);
  --shadow-lg: 0 4px 8px rgba(24,36,49,.04), 0 30px 60px -12px rgba(24,36,49,.18);
  --font: "HarmonyOS Sans SC", "HarmonyOS Sans", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  font-family: var(--font); background: var(--bg); color: var(--text);
  line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
::selection { background: var(--blue); color: #fff; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
button { font: inherit; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 32px; }
.blue { color: var(--blue); }

/* ---------- 导航 ---------- */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.82); backdrop-filter: saturate(1.8) blur(20px); -webkit-backdrop-filter: saturate(1.8) blur(20px); border-bottom: 1px solid transparent; transition: border-color .3s, box-shadow .3s; }
.nav.scrolled { border-color: var(--line); }
.nav .wrap { display: flex; align-items: center; height: 64px; gap: 48px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: -.01em; }
.logo svg, .logo img { width: 30px; height: 30px; flex: none; }
.logo b { font-weight: 700; }
.nav-links { display: flex; gap: 32px; font-size: 15px; color: var(--text-2); flex: 1; }
.nav-links a { position: relative; padding: 20px 0; transition: color .2s; }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--blue); border-radius: 2px; transform: scaleX(0); transition: transform .3s var(--ease); }
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-cta { display: flex; gap: 20px; align-items: center; margin-left: auto; }
.nav-mail { font-size: 14px; color: var(--text-2); background: none; border: 0; cursor: pointer; }
.nav-mail:hover { color: var(--blue); }
.nav .wrap > .btn:last-child { margin-left: auto; }
.menu-btn { display: none; background: none; border: 0; color: var(--text); width: 40px; height: 40px; cursor: pointer; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 48px; padding: 0 30px; border-radius: 999px; font-size: 16px; font-weight: 500;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: background .2s, color .2s, border-color .2s, transform .2s var(--ease), box-shadow .2s;
}
.btn svg, .link svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .2s var(--ease); }
.btn:hover svg, .link:hover svg { transform: translateX(3px); }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-hover); box-shadow: 0 8px 20px -8px rgba(10,89,247,.6); }
.btn-primary:active { transform: scale(.97); }
.btn-outline { border-color: rgba(10,89,247,.35); color: var(--blue); background: #fff; }
.btn-outline:hover { border-color: var(--blue); background: var(--blue-softer); }
.btn-sm { height: 36px; padding: 0 18px; font-size: 14px; }
.link { display: inline-flex; align-items: center; gap: 4px; color: var(--blue); font-weight: 500; font-size: 15px; }
.link.inline { display: inline; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 72px 0 48px; background: linear-gradient(180deg, #f5f8ff 0%, #fff 78%); }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-bg i { position: absolute; border-radius: 50%; filter: blur(70px); }
.hero-bg i:nth-child(1) { width: 560px; height: 560px; right: 2%; top: -120px; background: rgba(10,89,247,.13); animation: drift 18s ease-in-out infinite alternate; }
.hero-bg i:nth-child(2) { width: 380px; height: 380px; right: 28%; top: 220px; background: rgba(0,153,255,.08); animation: drift 22s -6s ease-in-out infinite alternate; }
.hero-bg i:nth-child(3) { width: 300px; height: 300px; left: -80px; top: 40px; background: rgba(10,89,247,.06); animation: drift 26s -12s ease-in-out infinite alternate; }
@keyframes drift { to { transform: translate(40px, 30px) scale(1.08); } }
.hero-grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; min-height: 560px; }
.pill { display: inline-flex; align-items: center; gap: 10px; padding: 4px 14px 4px 4px; border-radius: 999px; background: #fff; box-shadow: var(--shadow-sm); font-size: 13px; color: var(--text-2); }
.pill b { background: var(--blue-soft); color: var(--blue); padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.hero h1 { font-size: clamp(38px, 4.6vw, 60px); line-height: 1.2; font-weight: 700; letter-spacing: -.01em; margin: 24px 0 22px; }
.hero .lead { font-size: 18px; color: var(--text-2); max-width: 500px; }
.hero-actions { display: flex; gap: 16px; margin-top: 40px; flex-wrap: wrap; }

/* 设备组合 */
.devices { position: relative; height: 560px; --px: 0; --py: 0; }
.tablet {
  position: absolute; right: -10px; top: 70px; width: 420px; height: 300px; padding: 9px; border-radius: 26px;
  background: #1d2228; box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(255,255,255,.08);
  translate: calc(var(--px) * -18px) calc(var(--py) * -12px); transition: translate .8s var(--ease);
  animation: tabletIn 1.2s .3s var(--ease) both;
}
@keyframes tabletIn { from { opacity: 0; transform: translateX(60px); } }
.tab-screen { display: flex; height: 100%; border-radius: 18px; overflow: hidden; background: var(--gray); }
.ts-side { width: 60px; background: #fff; padding: 18px 0; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.ts-side i { width: 26px; height: 26px; border-radius: 8px; background: var(--gray); }
.ts-side i.on { background: var(--blue); }
.ts-main { flex: 1; padding: 18px; }
.ts-head { display: flex; justify-content: space-between; margin-bottom: 14px; }
.ts-head b { width: 110px; height: 12px; border-radius: 6px; background: var(--text); opacity: .8; }
.ts-head span { width: 22px; height: 22px; border-radius: 50%; background: #fff; }
.ts-banner { height: 90px; border-radius: 14px; background: linear-gradient(120deg, #0a59f7, #3b82ff); padding: 18px; display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.ts-banner span { height: 9px; width: 50%; border-radius: 5px; background: rgba(255,255,255,.85); }
.ts-banner span + span { width: 30%; opacity: .6; }
.ts-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.ts-grid i { height: 72px; border-radius: 12px; background: #fff; }

.phone {
  position: absolute; left: 40px; top: 6px; width: 264px; height: 548px; padding: 9px; border-radius: 44px;
  background: #1d2228; box-shadow: var(--shadow-lg), inset 0 0 0 1.5px rgba(255,255,255,.1);
  translate: calc(var(--px) * 14px) calc(var(--py) * 10px); transition: translate .8s var(--ease);
  animation: phoneIn 1.1s .15s var(--ease) both, float 7s 1.3s ease-in-out infinite;
}
@keyframes phoneIn { from { opacity: 0; transform: translateY(60px); } }
@keyframes float { 50% { transform: translateY(-10px); } }
.ph-screen { position: relative; height: 100%; border-radius: 36px; overflow: hidden; background: var(--gray); }
.ph-screen::before { content: ""; position: absolute; top: 11px; left: 50%; width: 11px; height: 11px; margin-left: -5px; border-radius: 50%; background: #111; }
.ph-status { display: flex; justify-content: space-between; align-items: center; padding: 10px 24px 0; font-size: 12px; font-weight: 600; }
.ph-icons { display: flex; gap: 3px; }
.ph-icons i { width: 12px; height: 7px; border-radius: 2px; background: var(--text); }
.ph-icons i:nth-child(1) { width: 8px; } .ph-icons i:nth-child(2) { width: 8px; }
.ph-head { display: flex; justify-content: space-between; align-items: center; padding: 18px 18px 10px; }
.ph-head small { font-size: 11px; color: var(--text-3); }
.ph-head h4 { font-size: 22px; font-weight: 700; line-height: 1.3; }
.ph-avatar { width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg, #cfe0ff, #0a59f7); }
.ph-card { margin: 4px 12px 10px; padding: 14px; border-radius: 18px; background: #fff; }
.ph-card-top { display: flex; justify-content: space-between; font-size: 11px; color: var(--text-3); }
.ph-card-top em { font-style: normal; color: var(--green); font-weight: 600; }
.ph-card > b { display: block; font-size: 26px; font-weight: 700; margin: 2px 0 8px; }
.ph-card > b small { font-size: 12px; font-weight: 500; color: var(--text-3); margin: 0 4px 0 2px; }
.ph-bars { display: flex; align-items: flex-end; gap: 8px; height: 54px; }
.ph-bars i { flex: 1; height: var(--h); border-radius: 4px; background: var(--blue-soft); animation: barUp 1s var(--ease) both; }
.ph-bars i:nth-child(6) { background: var(--blue); }
.ph-bars i:nth-child(1) { animation-delay: 1s; } .ph-bars i:nth-child(2) { animation-delay: 1.06s; } .ph-bars i:nth-child(3) { animation-delay: 1.12s; } .ph-bars i:nth-child(4) { animation-delay: 1.18s; } .ph-bars i:nth-child(5) { animation-delay: 1.24s; } .ph-bars i:nth-child(6) { animation-delay: 1.3s; } .ph-bars i:nth-child(7) { animation-delay: 1.36s; }
@keyframes barUp { from { height: 0; } }
.ph-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0 12px; padding: 12px 6px; border-radius: 18px; background: #fff; }
.ph-grid div { display: flex; flex-direction: column; align-items: center; gap: 4px; font-size: 10px; color: var(--text-2); }
.ph-grid i { width: 34px; height: 34px; border-radius: 11px; }
.g1 { background: #e9f0fe; box-shadow: inset 0 0 0 9px #e9f0fe, inset 0 0 0 11px var(--blue); }
.g2 { background: #fff1e8; box-shadow: inset 0 0 0 9px #fff1e8, inset 0 0 0 11px #ff8a3d; }
.g3 { background: #e7f8ef; box-shadow: inset 0 0 0 9px #e7f8ef, inset 0 0 0 11px var(--green); }
.g4 { background: var(--gray); box-shadow: inset 0 0 0 9px var(--gray), inset 0 0 0 11px var(--text-3); }
.ph-flow { display: flex; gap: 10px; align-items: center; margin: 10px 12px; padding: 12px; border-radius: 16px; background: #fff; animation: flowIn 8s 2.2s var(--ease) infinite both; }
.ph-flow i { width: 30px; height: 30px; border-radius: 10px; background: var(--blue); flex: none; position: relative; }
.ph-flow i::after { content: ""; position: absolute; inset: 8px 7px; border: 2px solid #fff; border-radius: 3px; }
.ph-flow b { display: block; font-size: 12px; line-height: 1.4; }
.ph-flow span { font-size: 10px; color: var(--text-3); }
@keyframes flowIn { 0%, 100% { opacity: 0; transform: translateY(12px); } 8%, 70% { opacity: 1; transform: none; } 78% { opacity: 0; transform: translateY(-6px); } }
.ph-nav { position: absolute; left: 0; right: 0; bottom: 0; height: 58px; background: rgba(255,255,255,.92); display: flex; justify-content: space-around; align-items: center; padding-bottom: 6px; }
.ph-nav i { width: 20px; height: 20px; border-radius: 6px; border: 1.8px solid var(--text-3); }
.ph-nav i.on { border-color: var(--blue); background: var(--blue); }

.watch {
  position: absolute; right: 70px; bottom: 30px; width: 124px; height: 124px; border-radius: 50%; padding: 8px;
  background: #1d2228; box-shadow: var(--shadow-lg), inset 0 0 0 2px #3a4048;
  translate: calc(var(--px) * 26px) calc(var(--py) * 18px); transition: translate .8s var(--ease);
  animation: popIn .9s 1s var(--ease) both;
}
.w-face { position: relative; height: 100%; border-radius: 50%; background: #0b0d10; display: flex; flex-direction: column; align-items: center; justify-content: center; color: #fff; text-align: center; }
.w-face svg { position: absolute; inset: 6px; }
.w-ring { animation: ring 2s 1.4s var(--ease) both; }
@keyframes ring { from { stroke-dashoffset: 188; } }
.w-face b { position: relative; font-size: 17px; line-height: 1.1; }
.w-face span { position: relative; font-size: 10px; opacity: .55; }
.float-card {
  position: absolute; display: flex; gap: 10px; align-items: center; padding: 12px 16px; border-radius: 16px;
  background: rgba(255,255,255,.9); backdrop-filter: blur(12px); box-shadow: var(--shadow); font-size: 13px;
  translate: calc(var(--px) * 22px) calc(var(--py) * 16px); transition: translate .8s var(--ease);
}
.float-card b { display: block; font-size: 14px; line-height: 1.35; }
.float-card small { color: var(--text-3); font-size: 12px; }
.fc-ico { width: 30px; height: 30px; border-radius: 50%; background: #e7f8ef; display: grid; place-items: center; }
.fc-ico svg { width: 16px; height: 16px; fill: none; stroke: var(--green); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.fc-1 { left: -20px; top: 300px; animation: popIn .8s 1.3s var(--ease) both, float 8s 2.2s ease-in-out infinite; }
.fc-2 { right: 0; top: 30px; flex-direction: column; align-items: flex-start; gap: 0; animation: popIn .8s 1.5s var(--ease) both, float 9s 2.4s ease-in-out infinite; }
.fc-2 code { font-family: var(--mono); color: var(--blue); font-weight: 700; font-size: 14px; }
@keyframes popIn { from { opacity: 0; transform: translateY(14px) scale(.94); } }

/* 快速入口 */
.entries { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 40px 0 0; padding-bottom: 8px; }
.entry {
  display: flex; gap: 16px; align-items: center; padding: 22px 24px; border-radius: var(--radius-sm); background: #fff;
  box-shadow: var(--shadow); border: 1px solid var(--line); transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
}
.entry:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(10,89,247,.25); }
.e-ico { width: 46px; height: 46px; border-radius: 14px; background: var(--blue-soft); display: grid; place-items: center; flex: none; transition: background .3s; }
.e-ico svg { width: 24px; height: 24px; fill: none; stroke: var(--blue); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; transition: stroke .3s; }
.entry:hover .e-ico { background: var(--blue); }
.entry:hover .e-ico svg { stroke: #fff; }
.entry b { display: block; font-size: 16px; font-weight: 600; }
.entry small { font-size: 13px; color: var(--text-3); }

/* ---------- 通用区块 ---------- */
section.block { padding: 120px 0; }
section.gray { background: var(--gray); }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.sec-head h2 { font-size: clamp(30px, 3.4vw, 44px); line-height: 1.3; font-weight: 700; letter-spacing: -.01em; margin-bottom: 14px; }
.sec-head p { font-size: 17px; color: var(--text-2); }

/* 全场景生态 */
.eco { max-width: 1040px; margin: 0 auto; }
.eco svg { width: 100%; height: auto; overflow: visible; }
.eco text { font-family: var(--font); font-size: 14px; fill: var(--text-2); stroke: none; text-anchor: middle; }
.eco .hub-t { font-size: 17px; font-weight: 700; fill: #fff; }
.eco .hub-s { font-size: 11px; fill: rgba(255,255,255,.75); letter-spacing: .04em; }
.eco .flow { stroke-dasharray: 3 9; animation: dash 1.4s linear infinite; opacity: 0; transition: opacity 1s .6s; }
@keyframes dash { to { stroke-dashoffset: -24; } }
.eco .dev { opacity: 0; transition: opacity .8s calc(var(--i) * .1s + .2s) var(--ease); }
.eco .lines { opacity: 0; transition: opacity 1s .5s; }
.eco.in .dev, .eco.in .lines { opacity: 1; }
.eco.in .flow { opacity: .5; }
.hub-pulse { transform-origin: 550px 130px; transform-box: view-box; animation: pulse 2.8s ease-out infinite; }
@keyframes pulse { from { transform: scale(1); opacity: 1; } to { transform: scale(1.8); opacity: 0; } }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 72px; border-radius: var(--radius); background: var(--gray); }
.stats div { padding: 34px 24px; text-align: center; }
.stats div + div { border-left: 1px solid var(--gray-2); }
.stats b { display: block; font-size: 40px; font-weight: 700; color: var(--blue); line-height: 1.2; }
.stats b small { font-size: 18px; margin-left: 2px; }
.stats span { font-size: 14px; color: var(--text-2); }

/* 服务选项卡 */
.tabs { display: grid; grid-template-columns: 260px 1fr; gap: 24px; }
.tab-list { display: flex; flex-direction: column; gap: 6px; position: relative; }
.tab {
  text-align: left; padding: 18px 22px; border-radius: var(--radius-sm); border: 0; background: transparent; cursor: pointer;
  font-size: 16px; color: var(--text-2); position: relative; transition: background .25s, color .25s;
}
.tab:hover { background: rgba(255,255,255,.6); color: var(--text); }
.tab.on { background: #fff; color: var(--blue); font-weight: 600; box-shadow: var(--shadow-sm); }
.tab.on::before { content: ""; position: absolute; left: 0; top: 18px; bottom: 18px; width: 3px; border-radius: 3px; background: var(--blue); }
.panels { position: relative; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm); min-height: 460px; overflow: hidden; }
.panel { display: none; grid-template-columns: 1fr 1.05fr; gap: 40px; padding: 48px; align-items: center; height: 100%; }
.panel.on { display: grid; animation: panelIn .55s var(--ease) both; }
@keyframes panelIn { from { opacity: 0; transform: translateY(12px); } }
.p-text h3 { font-size: 28px; font-weight: 700; margin-bottom: 14px; }
.p-text p { color: var(--text-2); margin-bottom: 22px; }
.p-text ul { list-style: none; display: grid; gap: 12px; margin-bottom: 30px; }
.p-text li { display: flex; gap: 10px; align-items: center; font-size: 15px; }
.p-text li::before { content: ""; width: 18px; height: 18px; flex: none; border-radius: 50%; background: var(--blue-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='m5.5 9.2 2.3 2.3 4.7-4.8' fill='none' stroke='%230a59f7' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); }
.p-art { background: var(--gray); border-radius: 20px; padding: 28px; min-height: 340px; display: grid; place-items: center; }

.code { width: 100%; background: #1d2228; border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); }
.code-top { display: flex; align-items: center; gap: 6px; padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,.06); }
.code-top i { width: 10px; height: 10px; border-radius: 50%; background: #ff5f57; }
.code-top i:nth-child(2) { background: #febc2e; } .code-top i:nth-child(3) { background: #28c840; }
.code-top span { margin-left: 8px; font-family: var(--mono); font-size: 12px; color: #8a929c; }
pre { padding: 18px 20px; font-family: var(--mono); font-size: 13px; line-height: 1.75; overflow-x: auto; color: #d6dde6; }
.t-k { color: #c792ea; } .t-d { color: #ff9e64; } .t-s { color: #a5d6a7; } .t-f { color: #82aaff; } .t-n { color: #f78c6c; }

.migrate { display: flex; align-items: center; gap: 12px; width: 100%; }
.m-box { flex: 1; background: #fff; border-radius: 16px; padding: 18px; box-shadow: var(--shadow-sm); display: grid; gap: 10px; }
.m-tag { font-size: 12px; font-weight: 600; color: var(--text-2); }
.m-box i { height: 30px; border-radius: 8px; background: var(--gray); }
.m-box.hm .m-tag { color: var(--blue); }
.m-box.hm i { background: var(--blue-soft); }
.m-box.hm i:first-of-type { background: var(--blue); }
.m-arrow { display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--blue); }
.m-arrow svg { width: 60px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 6 5; animation: dash 1s linear infinite; }
.m-arrow small { font-size: 11px; font-weight: 600; white-space: nowrap; }

.widgets { display: grid; grid-template-columns: 1.3fr 1fr; gap: 12px; width: 100%; max-width: 360px; }
.wg { background: #fff; border-radius: 18px; padding: 16px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; transition: transform .3s var(--ease); }
.wg:hover { transform: translateY(-3px); }
.wg small { font-size: 12px; color: var(--text-3); }
.wg b { font-size: 26px; font-weight: 700; line-height: 1.3; }
.wg span { font-size: 12px; color: var(--text-2); }
.wg-l { grid-row: span 2; background: linear-gradient(160deg, #3b82ff, #0a59f7); color: #fff; justify-content: space-between; }
.wg-l small, .wg-l span { color: rgba(255,255,255,.8); }
.wg-l b { font-size: 48px; font-weight: 500; }
.wg-s.blue b { color: var(--blue); }
.wg-w { grid-column: span 2; flex-direction: row; align-items: center; gap: 12px; }
.wg-w b { font-size: 15px; }
.wg-ico { width: 40px; height: 40px; border-radius: 12px; background: #ff8a3d; flex: none; }

.multi { position: relative; width: 100%; height: 260px; }
.md { position: absolute; background: #fff; border: 7px solid #1d2228; display: grid; gap: 6px; padding: 8px; box-shadow: var(--shadow); }
.md i { border-radius: 4px; background: var(--gray); }
.md i:first-child { background: var(--blue); }
.md-pc { left: 0; top: 0; width: 64%; height: 160px; border-radius: 10px; grid-template-columns: repeat(3, 1fr); }
.md-tab { right: 4%; top: 46px; width: 40%; height: 150px; border-radius: 14px; grid-template-columns: 1fr 1fr; }
.md-ph { left: 34%; bottom: 0; width: 72px; height: 140px; border-radius: 14px; grid-template-columns: 1fr; }
.panel.on .md-pc { animation: popIn .6s .1s var(--ease) both; }
.panel.on .md-tab { animation: popIn .6s .2s var(--ease) both; }
.panel.on .md-ph { animation: popIn .6s .3s var(--ease) both; }

.checklist { list-style: none; width: 100%; max-width: 340px; background: #fff; border-radius: 18px; padding: 10px 20px; box-shadow: var(--shadow-sm); }
.checklist li { display: flex; align-items: center; gap: 12px; padding: 12px 0; font-size: 14px; color: var(--text-3); border-bottom: 1px solid var(--line); }
.checklist li:last-child { border: 0; }
.checklist i { width: 20px; height: 20px; border-radius: 50%; border: 1.5px solid var(--gray-2); flex: none; position: relative; }
.checklist .done { color: var(--text); }
.checklist .done i { background: var(--blue); border-color: var(--blue); }
.checklist .done i::after { content: ""; position: absolute; left: 5.5px; top: 2.5px; width: 5px; height: 9px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.checklist .cur { color: var(--blue); font-weight: 600; }
.checklist .cur i { border-color: var(--blue); }
.checklist .cur i::after { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: var(--blue); animation: blink 1.4s ease-in-out infinite; }
.checklist .cur span { margin-left: auto; font-size: 12px; font-weight: 500; background: var(--blue-soft); padding: 2px 10px; border-radius: 999px; }
@keyframes blink { 50% { opacity: .25; } }
.panel.on .checklist li { animation: rowIn .5s var(--ease) both; }
.panel.on .checklist li:nth-child(2) { animation-delay: .06s; } .panel.on .checklist li:nth-child(3) { animation-delay: .12s; } .panel.on .checklist li:nth-child(4) { animation-delay: .18s; } .panel.on .checklist li:nth-child(5) { animation-delay: .24s; } .panel.on .checklist li:nth-child(6) { animation-delay: .3s; }
@keyframes rowIn { from { opacity: 0; transform: translateX(12px); } }

.perf { width: 100%; max-width: 380px; background: #fff; border-radius: 18px; padding: 24px; box-shadow: var(--shadow-sm); }
.pf-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 18px; }
.pf-head span { font-weight: 600; }
.pf-head b { font-size: 30px; color: var(--green); }
.pf-row { display: grid; grid-template-columns: 52px 1fr 48px; gap: 10px; align-items: center; font-size: 13px; color: var(--text-2); margin-bottom: 12px; }
.pf-row div { height: 12px; border-radius: 6px; background: var(--gray); overflow: hidden; }
.pf-row i { display: block; height: 100%; width: var(--w); border-radius: 6px; background: var(--text-3); }
.pf-row i.b { background: var(--blue); }
.panel.on .pf-row i { animation: grow 1.2s .2s var(--ease) both; }
@keyframes grow { from { width: 0; } }
.pf-row em { font-style: normal; text-align: right; font-weight: 600; color: var(--text); }
.perf > small { font-size: 11px; color: var(--text-3); }

/* 流程 */
.steps { list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; position: relative; }
.steps::before { content: ""; position: absolute; top: 27px; left: 10%; right: 10%; height: 2px; background: var(--gray-2); }
.steps::after { content: ""; position: absolute; top: 27px; left: 10%; right: 10%; height: 2px; background: var(--blue); transform: scaleX(0); transform-origin: left; transition: transform 1.8s .3s var(--ease); }
.steps.in::after { transform: scaleX(1); }
.steps li { text-align: center; position: relative; z-index: 1; }
.sn {
  width: 56px; height: 56px; margin: 0 auto 22px; border-radius: 50%; display: grid; place-items: center;
  font-size: 20px; font-weight: 700; background: #fff; color: var(--text-3); border: 2px solid var(--gray-2);
  transition: background .4s, color .4s, border-color .4s, box-shadow .4s;
}
.steps.in .sn { background: var(--blue); color: #fff; border-color: var(--blue); box-shadow: 0 0 0 6px var(--blue-soft); }
.steps.in li:nth-child(1) .sn { transition-delay: .3s; } .steps.in li:nth-child(2) .sn { transition-delay: .7s; } .steps.in li:nth-child(3) .sn { transition-delay: 1.1s; } .steps.in li:nth-child(4) .sn { transition-delay: 1.5s; } .steps.in li:nth-child(5) .sn { transition-delay: 1.9s; }
.steps h3 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }
.steps p { font-size: 14px; color: var(--text-2); padding: 0 8px; }

/* 案例 */
.cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case { background: #fff; border-radius: var(--radius); overflow: hidden; transition: transform .4s var(--ease), box-shadow .4s; }
.case:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.case-img { height: 260px; display: flex; justify-content: center; align-items: flex-end; overflow: hidden; position: relative; }
.ci-1 { background: linear-gradient(160deg, #fff4ea, #ffe2cc); }
.ci-2 { background: linear-gradient(160deg, #eef4ff, #d6e4ff); }
.ci-3 { background: linear-gradient(160deg, #ecfaf2, #cff0de); }
.cphone {
  width: 168px; height: 226px; margin-bottom: -16px; padding: 18px 16px; border-radius: 28px 28px 0 0; text-align: center;
  background: #fff; border: 7px solid #1d2228; border-bottom: 0; box-shadow: var(--shadow-lg); transition: transform .5s var(--ease);
}
.case:hover .cphone { transform: translateY(-10px); }
.cp-icon { width: 50px; height: 50px; margin: 4px auto 10px; border-radius: 15px; display: grid; place-items: center; font-size: 24px; }
.cphone b { display: block; font-size: 16px; }
.cphone span { font-size: 11px; color: var(--text-3); }
.cp-wave { display: flex; gap: 4px; justify-content: center; align-items: center; height: 46px; margin-top: 10px; }
.cp-wave i { width: 5px; border-radius: 3px; background: #ff8a3d; animation: wave 1.3s ease-in-out infinite; }
.cp-wave i:nth-child(odd) { animation-delay: -.5s; } .cp-wave i:nth-child(3n) { animation-delay: -.9s; }
@keyframes wave { 0%, 100% { height: 10px; } 50% { height: 34px; } }
.cp-opts { display: grid; gap: 6px; margin-top: 12px; }
.cp-opts i { height: 16px; border-radius: 6px; background: var(--gray); }
.cp-opts i.on { background: var(--blue); }
.cp-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 12px; }
.cp-cards i { height: 50px; border-radius: 10px; background: var(--gray); }
.cp-cards i:first-child { background: var(--green); }
.case-body { padding: 24px 28px 30px; }
.chips { display: flex; gap: 6px; margin-bottom: 10px; }
.chips span { font-size: 12px; padding: 2px 10px; border-radius: 999px; background: var(--blue-soft); color: var(--blue); }
.case-body h3 { font-size: 20px; font-weight: 600; margin-bottom: 6px; }
.case-body p { font-size: 14.5px; color: var(--text-2); }

/* FAQ */
.faq { max-width: 860px; margin: 0 auto; display: grid; gap: 12px; }
.faq details { background: var(--gray); border-radius: var(--radius-sm); padding: 0 28px; transition: background .25s, box-shadow .25s; }
.faq details[open] { background: #fff; box-shadow: var(--shadow); }
.faq summary { list-style: none; cursor: pointer; padding: 22px 0; font-weight: 600; font-size: 17px; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; flex: none; width: 24px; height: 24px; border-radius: 50%; background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m8 10 4 4 4-4' fill='none' stroke='%23182431' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  transition: transform .3s var(--ease);
}
.faq details[open] summary::after { transform: rotate(180deg); background-color: var(--blue-soft); }
.faq details p { color: var(--text-2); padding-bottom: 24px; font-size: 15.5px; }

/* 联系 */
.cta {
  position: relative; overflow: hidden; border-radius: 32px; padding: 64px;
  background: linear-gradient(135deg, #0a59f7 0%, #0b4fd9 100%); color: #fff;
  display: grid; grid-template-columns: 1fr 1.05fr; gap: 56px; align-items: center;
}
.cta-bg { position: absolute; inset: 0; pointer-events: none; }
.cta-bg i { position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,.14); }
.cta-bg i:nth-child(1) { width: 520px; height: 520px; left: -160px; bottom: -280px; box-shadow: 0 0 0 70px rgba(255,255,255,.03), 0 0 0 140px rgba(255,255,255,.02); }
.cta-bg i:nth-child(2) { width: 260px; height: 260px; right: 38%; top: -160px; }
.cta-text { position: relative; }
.cta h2 { font-size: clamp(30px, 3.4vw, 44px); line-height: 1.3; font-weight: 700; margin-bottom: 14px; }
.cta p { color: rgba(255,255,255,.8); max-width: 380px; }
.contact-list { display: grid; gap: 14px; margin-top: 34px; }
.contact-list a, .contact-list div { display: flex; align-items: center; gap: 12px; font-size: 15px; }
.contact-list svg { width: 20px; height: 20px; fill: none; stroke: #fff; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; opacity: .85; }
form.lead-form { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; background: #fff; padding: 32px; border-radius: 24px; color: var(--text); box-shadow: 0 30px 60px -20px rgba(0,20,80,.45); }
.lead-form .full { grid-column: 1 / -1; }
.lead-form label span { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.lead-form input, .lead-form select, .lead-form textarea {
  width: 100%; background: var(--gray); border: 1.5px solid transparent; border-radius: 12px; padding: 12px 14px;
  color: var(--text); font: inherit; font-size: 15px; outline: none; transition: border-color .2s, background .2s; -webkit-appearance: none; appearance: none;
}
.lead-form select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23182431' stroke-opacity='.5' stroke-width='1.6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 38px; }
.lead-form textarea { min-height: 110px; resize: vertical; }
.lead-form input::placeholder, .lead-form textarea::placeholder { color: var(--text-3); }
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus { border-color: var(--blue); background: #fff; }
.lead-form .btn { width: 100%; }
.form-note { font-size: 12px; color: var(--text-3); text-align: center; }

.wx-copy { display: flex; align-items: center; gap: 12px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22); color: #fff; padding: 12px 16px; border-radius: 14px; cursor: pointer; font-size: 15px; width: fit-content; transition: background .2s; }
.wx-copy:hover { background: rgba(255,255,255,.2); }
.wx-copy span { white-space: nowrap; }
.wx-copy svg { flex: none; }
.wx-copy em { white-space: nowrap; flex: none; font-style: normal; font-size: 12px; padding: 2px 10px; border-radius: 999px; background: #fff; color: var(--blue); font-weight: 600; }
.foot-wx { background: none; border: 0; padding: 0; color: inherit; cursor: pointer; text-align: left; width: fit-content; }
.foot-wx:hover { color: var(--blue); }
.toast { position: fixed; left: 50%; bottom: 32px; z-index: 200; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; background: rgba(24,36,49,.92); color: #fff; font-size: 14px; padding: 12px 20px; border-radius: 999px; white-space: nowrap; transition: opacity .3s, transform .3s var(--ease); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* 页脚 */
.site-foot { background: var(--gray); margin-top: 120px; padding: 64px 0 32px; font-size: 14px; color: var(--text-2); }
.foot-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid var(--gray-2); }
.foot-brand .logo { color: var(--text); }
.foot-brand p { margin-top: 16px; line-height: 1.9; }
.foot-col { display: flex; flex-direction: column; gap: 10px; }
.foot-col h4 { font-size: 15px; color: var(--text); font-weight: 600; margin-bottom: 4px; }
.foot-col a { width: fit-content; transition: color .2s; }
.foot-col a:hover { color: var(--blue); }
.foot-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 24px; font-size: 12.5px; color: var(--text-3); flex-wrap: wrap; }

/* 滚动出现 */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.intro { animation: fadeUp .9s var(--d, 0s) var(--ease) both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } }

/* 文档页（隐私政策等） */
.doc { max-width: 800px; margin: 0 auto; padding: 72px 32px 40px; }
.doc h1 { font-size: 40px; font-weight: 700; margin-bottom: 8px; }
.doc .meta { color: var(--text-3); margin-bottom: 40px; font-size: 14px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.doc h2 { font-size: 21px; font-weight: 600; margin: 40px 0 12px; }
.doc p, .doc li { color: var(--text-2); font-size: 15.5px; line-height: 1.9; }
.doc a { color: var(--blue); }
.doc ul { padding-left: 22px; margin: 8px 0; }
.doc li { margin: 6px 0; }
.grad-text { color: var(--blue); }
.doc + footer { background: var(--gray); margin-top: 80px; padding: 32px 0; font-size: 14px; color: var(--text-2); }
.doc + footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.doc + footer nav { display: flex; gap: 24px; }
.doc + footer a:hover { color: var(--blue); }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav-mail { display: none; }
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero .lead { margin: 0 auto; }
  .hero-actions { justify-content: center; }
  .devices { max-width: 560px; width: 100%; margin: 0 auto; }
  .entries { grid-template-columns: repeat(2, 1fr); }
  .tabs { grid-template-columns: 1fr; }
  .tab-list { flex-direction: row; overflow-x: auto; scrollbar-width: none; gap: 8px; padding-bottom: 4px; }
  .tab-list::-webkit-scrollbar { display: none; }
  .tab { white-space: nowrap; padding: 10px 18px; border-radius: 999px; font-size: 14px; }
  .tab.on::before { display: none; }
  .panel { grid-template-columns: 1fr; padding: 36px; }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .steps::before, .steps::after { display: none; }
  .cases { grid-template-columns: 1fr 1fr; }
  .cta { grid-template-columns: 1fr; padding: 48px 40px; }
  .foot-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .wrap { padding: 0 16px; }
  .nav .wrap { gap: 16px; }
  .nav-links { display: none; }
  .nav-cta .btn { display: none; }
  .menu-btn { display: grid; place-items: center; }
  .nav.open { background: #fff; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; gap: 0; position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 4px 16px 12px; box-shadow: var(--shadow);
  }
  .nav.open .nav-links a { padding: 14px 4px; border-bottom: 1px solid var(--line); }
  .nav.open .nav-links a::after { display: none; }
  .hero { padding-top: 44px; }
  .hero h1 { font-size: 34px; }
  .hero .lead { font-size: 16px; }
  .hero-grid { min-height: 0; }
  .devices { height: 470px; margin-top: 12px; }
  .tablet { width: 250px; height: 180px; right: -8px; top: 50px; border-radius: 20px; padding: 7px; }
  .tab-screen { border-radius: 14px; }
  .ts-side { width: 36px; gap: 8px; padding: 10px 0; } .ts-side i { width: 16px; height: 16px; border-radius: 5px; }
  .ts-main { padding: 10px; } .ts-banner { height: 50px; padding: 10px; } .ts-grid i { height: 36px; }
  .phone { left: 50%; margin-left: -150px; width: 220px; height: 456px; border-radius: 38px; }
  .ph-screen { border-radius: 31px; }
  .ph-flow { display: none; }
  .watch { width: 96px; height: 96px; right: 0; bottom: 10px; }
  .w-face b { font-size: 14px; }
  .float-card { display: none; }
  .entries { grid-template-columns: 1fr; gap: 10px; margin-top: 16px; }
  .entry { padding: 16px 18px; }
  section.block { padding: 80px 0; }
  .sec-head { margin-bottom: 40px; }
  .sec-head p { font-size: 15.5px; }
  .eco text { font-size: 26px; }
  .eco .hub-t { font-size: 20px; }
  .stats { grid-template-columns: 1fr 1fr; margin-top: 40px; }
  .stats div:nth-child(3) { border-left: 0; }
  .stats div:nth-child(n+3) { border-top: 1px solid var(--gray-2); }
  .stats b { font-size: 32px; }
  .panel { padding: 24px; gap: 24px; }
  .p-text h3 { font-size: 23px; }
  .p-art { padding: 18px; min-height: 0; }
  .migrate { flex-direction: column; }
  .m-box { width: 100%; }
  .m-arrow svg { transform: rotate(90deg); }
  .steps { grid-template-columns: 1fr 1fr; }
  .cases { grid-template-columns: 1fr; }
  .faq details { padding: 0 20px; }
  .faq summary { font-size: 16px; }
  .cta { padding: 36px 20px; border-radius: 24px; gap: 32px; }
  form.lead-form { grid-template-columns: 1fr; padding: 22px; }
  .foot-top { grid-template-columns: 1fr 1fr; gap: 28px; }
  .foot-brand { grid-column: 1 / -1; }
  .foot-bottom { flex-direction: column; gap: 6px; }
  .wx-copy { width: 100%; font-size: 14px; padding: 12px 14px; gap: 10px; }
  .wx-copy em { margin-left: auto; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}