/* =========================================================
   如意 RUYI 官网 · 科技风门户
   设计基线：暗色 #0B0F14 + 电光蓝 #4C8DFF + 1px 细描边分层
   与 App 的雾蓝 UI 形成明暗对比；零外部依赖，可离线打开
   ========================================================= */

:root {
  --bg: #070d16;
  --bg-2: #0b1424;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-hi: rgba(255, 255, 255, 0.065);
  --edge: rgba(255, 255, 255, 0.10);
  --edge-hi: rgba(255, 255, 255, 0.22);
  --ink: #e9eef7;
  --ink-2: #a3b0c2;
  --ink-3: #66748b;
  --accent: #4c8dff;
  --accent-2: #7b61ff;
  --mist: #a9c6de;
  --mist-light: #dceaf6;
  --deep: #2e5f8a;
  --ok: #35c08e;
  --wrap: 1200px;
  --r: 16px;
  --ease: cubic-bezier(.22, .68, 0, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
img { max-width: 100%; display: block; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.wrap { width: min(var(--wrap), calc(100% - 48px)); margin-inline: auto; }
.mono, code { font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
.pc-only { display: inline; }

/* ---------- 全局氛围层 ---------- */
.ambient { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; background: radial-gradient(1200px 700px at 78% -8%, #14243c 0%, transparent 62%), radial-gradient(900px 620px at 5% 96%, #11182d 0%, transparent 60%), var(--bg); }
.ambient-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, #000 0%, transparent 78%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, #000 0%, transparent 78%);
}
.ambient-noise { position: absolute; inset: 0; background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(255,255,255,.009) 3px 4px); }
.glow { position: absolute; border-radius: 50%; filter: blur(110px); opacity: .20; animation: breathe 2.6s ease-in-out infinite alternate; }
.glow-a { width: 620px; height: 620px; top: -180px; right: -80px; background: #2f6bff; }
.glow-b { width: 520px; height: 520px; bottom: -160px; left: -120px; background: #7b61ff; animation-delay: -1.3s; }
@keyframes breathe { from { opacity: .12; } to { opacity: .28; } }

/* ---------- 导航 ---------- */
.site-header { position: sticky; top: 0; z-index: 50; height: 76px; border-bottom: 1px solid transparent; transition: background .3s, border-color .3s, backdrop-filter .3s; }
.site-header.is-scrolled { background: rgba(7, 13, 22, .78); border-bottom-color: var(--edge); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 40px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand img { border-radius: 11px; box-shadow: 0 4px 18px rgba(76, 141, 255, .28); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 19px; letter-spacing: 2px; font-weight: 700; }
.brand-text em { font-style: normal; font-size: 9px; letter-spacing: 3.4px; color: var(--ink-3); font-family: ui-monospace, Consolas, monospace; }
.main-nav { display: flex; align-items: center; gap: 34px; margin-left: auto; }
.nav-link { position: relative; font-size: 14px; color: var(--ink-2); transition: color .22s; white-space: nowrap; }
.nav-link:hover, .nav-link.is-active { color: var(--ink); }
.nav-link::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 2px; border-radius: 2px; background: var(--accent); transition: right .28s var(--ease); }
.nav-link.is-active::after, .nav-link:hover::after { right: 0; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; width: 40px; height: 40px; border: 1px solid var(--edge); border-radius: 10px; background: var(--surface); padding: 11px 9px; }
.nav-toggle span { display: block; height: 1.5px; background: var(--ink); margin: 4px 0; transition: transform .25s, opacity .25s; }

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; border-radius: 12px; border: 1px solid transparent; font-weight: 600; transition: transform .22s var(--ease), box-shadow .25s, background .25s, border-color .25s; white-space: nowrap; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: scale(.975); }
.btn svg { width: 19px; height: 19px; }
.btn-nav { height: 40px; padding: 0 17px; font-size: 13.5px; color: #fff; background: linear-gradient(135deg, #4c8dff, #3a6fe0); box-shadow: 0 6px 22px rgba(76, 141, 255, .28); }
.btn-nav:hover { box-shadow: 0 10px 30px rgba(76, 141, 255, .42); }
.btn-stack { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.25; text-align: left; }
.btn-stack strong { font-size: 15.5px; font-weight: 650; }
.btn-stack small { font-size: 11.5px; font-weight: 400; opacity: .78; letter-spacing: .2px; }
.btn-primary { color: #fff; background: linear-gradient(135deg, #4c8dff 0%, #4179e8 55%, #6d63e8 100%); box-shadow: 0 12px 34px rgba(76, 141, 255, .32), inset 0 1px 0 rgba(255,255,255,.22); position: relative; overflow: hidden; }
.btn-primary::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 25%, rgba(255,255,255,.22) 48%, transparent 72%); transform: translateX(-130%); animation: sheen 5.5s ease-in-out infinite; }
@keyframes sheen { 0%, 62% { transform: translateX(-130%); } 82%, 100% { transform: translateX(130%); } }
.btn-primary:hover { box-shadow: 0 16px 44px rgba(76, 141, 255, .48), inset 0 1px 0 rgba(255,255,255,.28); }
.btn-hero { height: 62px; padding: 0 26px; border-radius: 14px; }
.btn-hero svg { width: 22px; height: 22px; }
.btn-ghost { height: 62px; padding: 0 24px; border-color: var(--edge-hi); color: var(--ink); background: var(--surface); font-size: 14.5px; }
.btn-ghost:hover { background: var(--surface-hi); border-color: rgba(255,255,255,.34); }
.btn-ghost svg { width: 17px; height: 17px; }
.btn-sm { height: 44px; padding: 0 18px; font-size: 13.5px; border-radius: 10px; }
.btn-dl { height: 64px; padding: 0 26px; width: 100%; border-radius: 14px; }
.btn-dl svg { width: 22px; height: 22px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--mist-light); font-size: 14px; font-weight: 600; border-bottom: 1px solid rgba(169, 198, 222, .35); padding-bottom: 4px; transition: gap .25s, border-color .25s; }
.text-link:hover { gap: 14px; border-color: var(--mist-light); }
.text-link svg { width: 16px; height: 16px; }

/* ---------- Hero ---------- */
/* 首屏的光环 / 轨道是绝对定位装饰，在 940~1120px 会越出视口把文档撑宽；
   clip 只裁横向溢出，不创建滚动容器，也不影响手机内框与浮动卡 */
.hero { padding-top: 54px; padding-bottom: 72px; overflow-x: clip; }
.hero-inner { display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr); align-items: center; gap: 40px; min-height: 620px; }
.hero-copy { position: relative; z-index: 2; min-width: 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font: 600 11px/1 ui-monospace, Consolas, monospace; letter-spacing: 2.4px; color: var(--mist); padding: 9px 15px; border: 1px solid rgba(169,198,222,.24); border-radius: 999px; background: rgba(169,198,222,.06); }
.eyebrow i { width: 1px; height: 11px; background: rgba(169,198,222,.4); }
.pulse-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(53,192,142,.16); animation: pulse 2.2s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(53,192,142,0); } }
.hero-title { margin: 30px 0 6px; display: flex; align-items: baseline; gap: 22px; flex-wrap: wrap; }
.title-cn { font-size: clamp(64px, 8vw, 104px); line-height: 1; font-weight: 800; letter-spacing: 8px; background: linear-gradient(160deg, #ffffff 8%, var(--mist-light) 45%, var(--mist) 92%); -webkit-background-clip: text; background-clip: text; color: transparent; text-shadow: 0 0 60px rgba(169,198,222,.18); }
.title-en { position: relative; font: 500 clamp(15px, 1.7vw, 20px)/1 ui-monospace, Consolas, monospace; letter-spacing: 9px; color: var(--ink-3); }
.title-line { display: block; height: 1px; margin-top: 12px; background: linear-gradient(90deg, var(--accent), transparent); }
.hero-lead { font-size: clamp(21px, 2.4vw, 28px); font-weight: 600; letter-spacing: 1px; margin: 18px 0 10px; color: var(--ink); }
.hero-desc { font-size: 15.5px; color: var(--ink-2); max-width: 500px; margin: 0 0 26px; }
.cap-chips { display: flex; flex-wrap: wrap; gap: 9px; list-style: none; padding: 0; margin: 0 0 34px; }
.cap-chips li { font-size: 12.5px; color: var(--mist); padding: 6px 14px; border: 1px solid rgba(169,198,222,.22); border-radius: 8px; background: rgba(169,198,222,.055); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0; margin-top: 22px; font-size: 12.5px; color: var(--ink-3); }
.hero-meta span { padding: 0 14px; border-left: 1px solid var(--edge); }
.hero-meta span:first-child { padding-left: 0; border-left: 0; }
.hero-meta .apk-only { color: var(--mist-light); font-weight: 600; }

/* 首屏新特性提示条：第一眼就能看到「微信扫码远控」 */
.hero-highlight { display: flex; align-items: center; gap: 12px; width: 100%; max-width: 520px; margin: 0 0 24px; padding: 11px 14px; border: 1px solid rgba(76,141,255,.38); border-radius: 12px; background: linear-gradient(100deg, rgba(76,141,255,.16), rgba(123,97,255,.07)); color: var(--ink); transition: border-color .25s, transform .25s var(--ease), background .25s; }
.hero-highlight:hover { border-color: rgba(76,141,255,.7); transform: translateY(-2px); background: linear-gradient(100deg, rgba(76,141,255,.24), rgba(123,97,255,.10)); }
.hh-star { display: grid; place-items: center; flex-shrink: 0; width: 28px; height: 28px; border-radius: 8px; background: rgba(76,141,255,.22); color: var(--mist-light); font-size: 15px; }
.hh-text { display: flex; flex: 1; flex-direction: column; min-width: 0; line-height: 1.45; }
.hh-text strong { font-size: 13px; font-weight: 650; color: var(--mist-light); }
.hh-text em { font-style: normal; font-size: 12px; color: var(--ink-2); overflow-wrap: anywhere; }
.hero-highlight > svg { flex-shrink: 0; width: 16px; height: 16px; color: var(--accent); }
.cap-chips li.is-hot { color: #cfe4ff; border-color: rgba(76,141,255,.5); background: rgba(76,141,255,.14); }

/* 两个特色能力并排：首屏第一眼同时看到微信远控与悬浮窗 */
.hero-highlights { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; width: 100%; max-width: 520px; margin: 0 0 24px; }
.hero-highlights .hero-highlight { margin: 0; max-width: none; min-width: 0; }
.hero-highlights .hh-text strong { font-size: 12.5px; }
.hero-highlights .hh-text em { font-size: 11.5px; }

/* Hero 右侧：手机 + 光环 */
.hero-visual { position: relative; display: flex; align-items: center; justify-content: center; min-width: 0; min-height: 600px; }
.halo { position: absolute; width: 480px; height: 480px; border-radius: 50%; background: radial-gradient(circle, rgba(76,141,255,.26) 0%, rgba(76,141,255,.06) 45%, transparent 70%); filter: blur(24px); }
.orbit { position: absolute; border-radius: 50%; border: 1px solid rgba(169,198,222,.12); }
.orbit-1 { width: 470px; height: 470px; border-style: dashed; border-color: rgba(169,198,222,.16); animation: spin 26s linear infinite; }
.orbit-2 { width: 570px; height: 570px; border-color: rgba(76,141,255,.10); animation: spin 40s linear infinite reverse; }
.orbit-2::before { content: ""; position: absolute; top: -3px; left: 50%; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 14px var(--accent); }
@keyframes spin { to { transform: rotate(360deg); } }

.phone { position: relative; z-index: 2; }
.phone-frame { position: relative; width: 292px; aspect-ratio: 540 / 1055; padding: 9px; border-radius: 42px; background: linear-gradient(155deg, #313f52 0%, #131c2a 42%, #0b1220 100%); box-shadow: 0 36px 90px rgba(0,0,0,.68), 0 0 0 1px rgba(255,255,255,.12), inset 0 1px 1px rgba(255,255,255,.18); }
.phone-screen { width: 100%; height: 100%; border-radius: 34px; overflow: hidden; background: #b3cde2; }
.phone-screen img { width: 100%; height: 100%; object-fit: cover; }
.phone-notch { position: absolute; z-index: 3; top: 17px; left: 50%; transform: translateX(-50%); width: 76px; height: 15px; border-radius: 999px; background: rgba(8,14,24,.88); }
.phone-glare { position: absolute; inset: 9px; border-radius: 34px; pointer-events: none; background: linear-gradient(120deg, rgba(255,255,255,.13) 0%, transparent 32%, transparent 70%, rgba(255,255,255,.05) 100%); }
.phone-hero { animation: float 6s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

.float-card { position: absolute; z-index: 4; display: flex; align-items: center; gap: 11px; padding: 12px 15px; border-radius: 12px; border: 1px solid var(--edge-hi); background: rgba(16, 26, 42, .82); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); box-shadow: 0 18px 40px rgba(0,0,0,.4); animation: float 7s ease-in-out infinite; }
.float-card strong { display: block; font-size: 13px; font-weight: 600; }
.float-card small { display: block; font-size: 11px; color: var(--ink-3); }
.float-card svg { width: 17px; height: 17px; color: var(--ok); }
.float-card-top { top: 74px; right: -6px; animation-delay: -2s; }
.float-card-bottom { bottom: 92px; left: -14px; animation-delay: -3.5s; }
.fc-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 12px var(--ok); }
.fc-badge { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; border: 1px solid rgba(76,141,255,.4); background: rgba(76,141,255,.12); color: var(--accent); font: 600 12px ui-monospace, Consolas, monospace; }

.stat-bar { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 34px; border-top: 1px solid var(--edge); border-bottom: 1px solid var(--edge); }
.stat { display: flex; align-items: baseline; gap: 14px; padding: 24px 28px; border-left: 1px solid var(--edge); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat strong { font: 700 clamp(26px, 3vw, 34px)/1 ui-monospace, Consolas, monospace; letter-spacing: -1px; background: linear-gradient(160deg, #fff, var(--mist)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { font-size: 13px; color: var(--ink-3); }
.plus, .pct { font-size: .6em; }

/* ---------- 特色能力：微信扫码远控 / 旧机新用（首屏之后的第一屏） ---------- */
.section.spotlight { padding-top: 18px; padding-bottom: 104px; }
.spotlight-panel { position: relative; display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr); gap: 48px; align-items: center; padding: 54px 52px; border: 1px solid rgba(76,141,255,.34); border-radius: 26px; background: linear-gradient(118deg, rgba(18,34,58,.94), rgba(11,20,36,.96) 58%, rgba(20,26,54,.94)); box-shadow: 0 30px 90px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.06); overflow: hidden; }
.sp-glow { position: absolute; width: 560px; height: 560px; top: -300px; right: -160px; border-radius: 50%; background: rgba(76,141,255,.22); filter: blur(90px); pointer-events: none; }
.sp-copy, .sp-visual { position: relative; z-index: 1; min-width: 0; }
.sp-badge { display: inline-flex; align-items: center; gap: 9px; flex-wrap: wrap; font: 600 11px/1 ui-monospace, Consolas, monospace; letter-spacing: 1.4px; color: var(--mist-light); padding: 10px 15px; border: 1px solid rgba(169,198,222,.32); border-radius: 999px; background: rgba(169,198,222,.08); }
.sp-badge-star { color: #ffd479; font-size: 13px; }
.sp-badge i { width: 1px; height: 11px; background: rgba(169,198,222,.4); }
.sp-copy h2 { font-size: clamp(30px, 3.5vw, 44px); line-height: 1.28; margin: 24px 0 18px; font-weight: 700; letter-spacing: .5px; }
.sp-copy h2 em { font-style: normal; background: linear-gradient(100deg, #8fb6ff, #b9a8ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sp-lead { font-size: 15.5px; color: var(--ink); margin: 0 0 12px; }
.sp-sub { font-size: 14px; color: var(--ink-2); margin: 0 0 26px; }
.sp-sub strong { color: var(--mist-light); }
.sp-steps { list-style: none; padding: 0; margin: 0 0 22px; border-top: 1px solid var(--edge); }
.sp-steps li { display: flex; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--edge); }
.ss-no { flex-shrink: 0; font: 700 13px/1.5 ui-monospace, Consolas, monospace; color: var(--accent); }
.sp-steps strong { display: block; font-size: 14.5px; margin-bottom: 2px; }
.sp-steps p { margin: 0; font-size: 12.8px; color: var(--ink-3); line-height: 1.65; }
.sp-tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0 0 26px; }
.sp-tags li { font-size: 11.8px; color: var(--mist); padding: 5px 11px; border: 1px solid rgba(169,198,222,.22); border-radius: 7px; background: rgba(169,198,222,.055); }
.sp-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
.sp-cta .btn-hero { height: 58px; }
.sp-cta .btn-ghost { height: 58px; padding: 0 20px; font-size: 13.5px; }
.sp-note { margin: 0; font-size: 11.5px; line-height: 1.75; color: var(--ink-3); border-left: 2px solid rgba(76,141,255,.4); padding-left: 12px; }

/* 右侧双机示意：两台设备 + 扫码徽标 + 连线光点，全部纯 CSS 绘制 */
.sp-visual { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; align-items: center; padding: 64px 0 26px; }
.sp-beam { position: absolute; z-index: 0; top: 58%; left: 10%; right: 10%; height: 1px; background: linear-gradient(90deg, transparent, rgba(76,141,255,.65), rgba(123,97,255,.55), transparent); }
.sp-beam i { position: absolute; top: -2px; width: 5px; height: 5px; border-radius: 50%; background: #9fc0ff; box-shadow: 0 0 12px #4c8dff; animation: beam 3.4s linear infinite; }
.sp-beam i:nth-child(2) { animation-delay: -1.1s; }
.sp-beam i:nth-child(3) { animation-delay: -2.2s; }
@keyframes beam { from { left: 0; opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } to { left: 100%; opacity: 0; } }
.sp-bind { position: absolute; z-index: 3; top: 0; left: 50%; transform: translateX(-50%); display: flex; flex-direction: row; align-items: center; gap: 8px; padding: 8px 14px; border: 1px solid rgba(169,198,222,.4); border-radius: 12px; background: rgba(14,24,42,.96); box-shadow: 0 12px 34px rgba(0,0,0,.5); }
.sp-bind svg { width: 26px; height: 26px; color: var(--mist-light); }
.sp-bind span { font-size: 10.5px; white-space: nowrap; color: var(--mist); }
.sp-device { position: relative; z-index: 2; border-radius: 22px; padding: 7px; border: 1px solid rgba(255,255,255,.16); background: linear-gradient(160deg, #2a3a50, #0d1626 55%, #0a1120); box-shadow: 0 22px 48px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.12); }
.sp-device-control { transform: translateY(-22px) rotate(-2deg); }
.sp-device-worker { transform: translateY(22px) rotate(2deg); }
.sd-top { display: flex; align-items: center; gap: 7px; padding: 8px 9px 10px; font-size: 10.5px; color: var(--ink-2); white-space: nowrap; }
.sd-top em { margin-left: auto; font-style: normal; font: 600 8.5px ui-monospace, Consolas, monospace; letter-spacing: .4px; color: var(--ink-3); }
.sd-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 10px rgba(53,192,142,.7); flex-shrink: 0; }
.sd-dot.is-live { background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.sd-screen { border-radius: 15px; min-height: 196px; padding: 12px 10px; background: #101a29; border: 1px solid rgba(255,255,255,.07); }
.sp-device-control .sd-screen { background: linear-gradient(180deg, #16263a, #101a29); }
.sd-chat { display: flex; align-items: flex-start; gap: 6px; margin-bottom: 10px; }
.sd-chat p { margin: 0; font-size: 10.5px; line-height: 1.5; padding: 7px 9px; border-radius: 9px; color: var(--ink); background: rgba(255,255,255,.08); }
.sd-chat-in { justify-content: flex-start; }
.sd-chat-out { justify-content: flex-end; }
.sd-chat-out p { background: rgba(53,192,142,.20); border: 1px solid rgba(53,192,142,.26); }
.sd-chat-in b { color: var(--ok); }
.sd-avatar { display: grid; place-items: center; flex-shrink: 0; width: 21px; height: 21px; border-radius: 6px; background: linear-gradient(135deg, #4c8dff, #6d63e8); color: #fff; font-size: 10px; font-weight: 700; }
.sd-foot { text-align: center; font-size: 10px; color: var(--ink-3); padding: 9px 0 3px; }
.ws-head { display: flex; justify-content: space-between; align-items: center; font-size: 10.5px; color: var(--ink); }
.ws-head span { font: 600 9.5px ui-monospace, Consolas, monospace; color: var(--accent); }
.ws-progress { height: 4px; border-radius: 4px; background: rgba(255,255,255,.08); margin: 9px 0 12px; overflow: hidden; }
.ws-progress i { display: block; width: 58%; height: 100%; border-radius: 4px; background: linear-gradient(90deg, #4c8dff, #8fb6ff); box-shadow: 0 0 10px rgba(76,141,255,.6); }
.ws-list { list-style: none; padding: 0; margin: 0; }
.ws-list li { position: relative; padding: 4px 0 4px 16px; font-size: 10px; color: var(--ink-3); }
.ws-list li::before { content: ""; position: absolute; left: 2px; top: 10px; width: 6px; height: 6px; border-radius: 50%; border: 1px solid var(--ink-3); }
.ws-list li.is-done, .ws-list li.is-now { color: var(--ink-2); }
.ws-list li.is-done::before { background: var(--ok); border-color: var(--ok); box-shadow: 0 0 8px rgba(53,192,142,.6); }
.ws-list li.is-now::before { border-color: var(--accent); box-shadow: 0 0 8px var(--accent); }
.sp-float { position: absolute; z-index: 4; right: -6px; bottom: 0; display: flex; align-items: center; gap: 7px; padding: 8px 12px; border: 1px solid var(--edge-hi); border-radius: 10px; background: rgba(16,26,42,.92); font-size: 10.5px; color: var(--ink-2); box-shadow: 0 12px 30px rgba(0,0,0,.45); }
.sp-float-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 10px var(--ok); }

/* ---------- 特色能力：悬浮窗 / 后台屏（真机实拍，青绿点缀区别蓝紫的微信远控） ---------- */
.section.floating { padding-top: 18px; padding-bottom: 108px; }
.fl-head { max-width: 780px; margin-bottom: 42px; }
.fl-head .section-index { margin-bottom: 16px; color: var(--ok); }
.fl-head h2 { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.25; margin: 0 0 14px; font-weight: 700; letter-spacing: .5px; }
.fl-head h2 em { font-style: normal; background: linear-gradient(100deg, #8fe3c4, #a9c6de); -webkit-background-clip: text; background-clip: text; color: transparent; }
.fl-head p { color: var(--ink-2); font-size: 15.5px; margin: 0; }

.fl-panel { position: relative; display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr); gap: 46px; align-items: start; padding: 48px 48px 50px; border: 1px solid rgba(53,192,142,.30); border-radius: 26px; background: linear-gradient(120deg, rgba(14,32,42,.94), rgba(11,20,36,.96) 55%, rgba(18,30,46,.94)); box-shadow: 0 30px 90px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.06); overflow: hidden; }
.fl-glow { position: absolute; width: 520px; height: 520px; bottom: -300px; left: -140px; border-radius: 50%; background: rgba(53,192,142,.16); filter: blur(90px); pointer-events: none; }
.fl-copy, .fl-visual { position: relative; z-index: 1; min-width: 0; }

.fl-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.fl-badge { display: inline-flex; align-items: center; gap: 7px; font: 600 11px/1 ui-monospace, Consolas, monospace; letter-spacing: .8px; color: var(--mist-light); padding: 9px 13px; border: 1px solid rgba(169,198,222,.3); border-radius: 999px; background: rgba(169,198,222,.08); }
.fl-badge-star { color: #ffd479; font-size: 13px; }
.fl-badge.is-real { color: #a8e9cf; border-color: rgba(53,192,142,.4); background: rgba(53,192,142,.10); }
.fl-copy h3 { font-size: clamp(25px, 2.8vw, 34px); line-height: 1.3; margin: 0 0 16px; font-weight: 700; }
.fl-copy h3 em { font-style: normal; color: #8fe3c4; }
.fl-lead { font-size: 14.5px; color: var(--ink-2); margin: 0 0 22px; }
.fl-lead strong { color: var(--ink); font-weight: 650; }

.fl-points { list-style: none; padding: 0; margin: 0 0 24px; border-top: 1px solid var(--edge); }
.fl-points li { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--edge); }
.fp-no { flex-shrink: 0; font: 700 12.5px/1.6 ui-monospace, Consolas, monospace; color: var(--ok); }
.fl-points strong { display: block; font-size: 14.5px; margin-bottom: 2px; }
.fl-points p { margin: 0; font-size: 12.8px; color: var(--ink-3); line-height: 1.65; }

.fl-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
.fl-cta .btn-hero { height: 58px; }
.fl-cta .btn-ghost { height: 58px; padding: 0 20px; font-size: 13.5px; }
.fl-note { margin: 0; font-size: 11.5px; line-height: 1.75; color: var(--ink-3); border-left: 2px solid rgba(53,192,142,.45); padding-left: 12px; }

/* 右侧视觉：主视觉为悬浮小窗真机特写，下方三张关键状态图等宽并排 */
/* 所有图片固定 aspect-ratio + 占位底色：未加载完也不会塌陷成空白框 */
.fl-visual { display: flex; flex-direction: column; gap: 14px; }

/* 顶部一行：完整真机长图（窄）+ 绿框小窗特写（宽），两张都置顶且等高对齐 */
.fl-top { display: grid; grid-template-columns: minmax(0, .37fr) minmax(0, .63fr); gap: 12px; align-items: center; }
.fl-top figure { margin: 0; min-width: 0; }
.fl-full-phone { padding: 9px 9px 8px; border: 1px solid var(--edge); border-radius: 15px; background: rgba(255,255,255,.03); }
.fl-full-phone img { display: block; width: 100%; height: auto; aspect-ratio: 1080 / 2110; object-fit: cover; border-radius: 9px; background: rgba(255,255,255,.04); }
.fl-full-phone figcaption { margin-top: 8px; font-size: 10.5px; line-height: 1.45; color: var(--ink-3); text-align: center; }

.fl-hero-shot { margin: 0; min-width: 0; padding: 12px 12px 10px; border: 1px solid rgba(53,192,142,.5); border-radius: 18px; background: rgba(10,22,30,.86); box-shadow: 0 18px 46px rgba(0,0,0,.4), 0 0 30px rgba(53,192,142,.08); }
.fl-hero-shot img { display: block; width: 100%; height: auto; aspect-ratio: 750 / 710; object-fit: cover; border-radius: 10px; background: rgba(255,255,255,.04); }
.fl-hero-shot figcaption { display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 10px; font-size: 11px; color: #a8e9cf; line-height: 1.5; text-align: center; }

.fl-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.fl-row figure { margin: 0; min-width: 0; padding: 8px 8px 7px; border: 1px solid var(--edge); border-radius: 13px; background: rgba(255,255,255,.03); }
.fl-row img { display: block; width: 100%; height: auto; aspect-ratio: 690 / 500; object-fit: cover; border-radius: 8px; background: rgba(255,255,255,.04); }
.fl-row figcaption { display: flex; align-items: center; justify-content: center; gap: 5px; margin-top: 8px; font-size: 10.5px; color: var(--ink-3); line-height: 1.45; text-align: center; }

.fz-key { display: inline-block; width: 10px; height: 10px; border-radius: 3px; border: 1px solid var(--ink-3); flex-shrink: 0; }
.fz-key.is-green { border-color: var(--ok); background: rgba(53,192,142,.35); }
.fz-key.is-orange { border-color: #f0a959; background: rgba(240,169,89,.35); }

/* ---------- 通用区块 ---------- */
.section { padding: 108px 0; }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-index { display: block; font: 600 11px/1 ui-monospace, Consolas, monospace; letter-spacing: 2.6px; color: var(--accent); margin-bottom: 20px; }
.section-head h2 { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.25; letter-spacing: .5px; margin: 0 0 16px; font-weight: 700; }
.section-head p { color: var(--ink-2); font-size: 15.5px; margin: 0; }

/* ---------- 核心能力 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feature-card { position: relative; padding: 30px 26px 28px; border: 1px solid var(--edge); border-radius: var(--r); background: linear-gradient(180deg, var(--surface-hi), var(--surface) 40%); overflow: hidden; transition: transform .3s var(--ease), border-color .3s, background .3s; }
.feature-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,.28), transparent); }
.feature-card:hover { transform: translateY(-6px); border-color: rgba(76,141,255,.45); background: linear-gradient(180deg, rgba(76,141,255,.10), var(--surface) 55%); }
.fc-icon { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px; border: 1px solid rgba(76,141,255,.28); background: rgba(76,141,255,.10); color: var(--mist-light); margin-bottom: 24px; }
.fc-icon svg { width: 23px; height: 23px; }
.fc-no { position: absolute; top: 26px; right: 24px; font: 600 11px ui-monospace, Consolas, monospace; color: var(--ink-3); letter-spacing: 1px; }
.feature-card h3 { font-size: 19px; margin: 0 0 10px; font-weight: 650; }
.feature-card p { font-size: 13.5px; color: var(--ink-2); margin: 0 0 22px; min-height: 66px; }
.fc-tag { display: inline-block; font-size: 11.5px; color: var(--mist); padding: 4px 10px; border-radius: 6px; border: 1px solid rgba(169,198,222,.2); background: rgba(169,198,222,.05); }

/* 第五项核心能力：跨整行的高亮卡，指向特色区块 */
.feature-card-wide { grid-column: 1 / -1; display: flex; align-items: center; gap: 24px; padding: 26px 30px; border-color: rgba(76,141,255,.34); background: linear-gradient(100deg, rgba(76,141,255,.13), rgba(123,97,255,.05) 60%, var(--surface)); }
.feature-card-wide::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(420px 130px at 88% 50%, rgba(76,141,255,.14), transparent 72%); }
.feature-card-wide .fc-icon { margin-bottom: 0; flex-shrink: 0; }
.fcw-body { position: relative; z-index: 1; flex: 1; min-width: 0; }
.feature-card-wide .fc-no { position: static; display: block; margin-bottom: 4px; }
.feature-card-wide h3 { margin: 0 0 6px; }
.feature-card-wide .fcw-body p { margin: 0; min-height: 0; max-width: 700px; }
.fcw-side { position: relative; z-index: 1; flex-shrink: 0; display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }

.feature-banner { display: grid; grid-template-columns: 1fr .72fr; align-items: center; gap: 60px; margin-top: 22px; padding: 54px 56px; border: 1px solid var(--edge); border-radius: 22px; background: linear-gradient(110deg, rgba(76,141,255,.10), rgba(123,97,255,.05) 55%, transparent); overflow: hidden; }
.fb-copy h3 { font-size: clamp(26px, 3vw, 34px); margin: 0 0 18px; line-height: 1.3; }
.fb-copy p { color: var(--ink-2); font-size: 15px; max-width: 520px; margin: 0 0 26px; }
/* 完整展示一张真机长图：不再固定高度裁切、不再底部渐隐，避免看起来像半张图 */
.fb-visual { position: relative; width: 100%; max-width: 248px; margin-inline: auto; border-radius: 16px; overflow: hidden; border: 1px solid var(--edge); box-shadow: 0 24px 60px rgba(0,0,0,.38), 0 0 0 1px rgba(255,255,255,.04); }
.fb-visual img { display: block; width: 100%; height: auto; }

/* ---------- 界面预览 ---------- */
.screens { position: relative; }
.screen-layout { display: grid; grid-template-columns: 250px 1fr 285px; gap: 34px; align-items: center; }
.screen-tabs { display: flex; flex-direction: column; gap: 10px; }
.screen-tab { display: flex; align-items: center; gap: 14px; width: 100%; padding: 17px 18px; text-align: left; border: 1px solid var(--edge); border-radius: 12px; background: var(--surface); color: var(--ink-2); font-size: 14.5px; transition: all .25s var(--ease); }
.screen-tab span { font: 600 11px ui-monospace, Consolas, monospace; color: var(--ink-3); }
.screen-tab:hover { border-color: var(--edge-hi); color: var(--ink); }
.screen-tab.is-active { color: var(--ink); border-color: rgba(76,141,255,.55); background: rgba(76,141,255,.12); box-shadow: inset 3px 0 0 var(--accent); }
.screen-tab.is-active span { color: var(--accent); }
.screen-stage { position: relative; display: flex; justify-content: center; align-items: center; min-height: 540px; border: 1px solid var(--edge); border-radius: 22px; background: radial-gradient(ellipse at 50% 40%, rgba(76,141,255,.10), transparent 65%), rgba(255,255,255,.02); overflow: hidden; }
.stage-glow { position: absolute; width: 340px; height: 340px; border-radius: 50%; background: rgba(76,141,255,.22); filter: blur(80px); }
.phone-stage .phone-frame { width: 246px; border-radius: 36px; }
.phone-stage .phone-screen, .phone-stage .phone-glare { border-radius: 28px; }
.phone-stage .phone-notch { width: 62px; height: 13px; top: 15px; }
#screenShot { transition: opacity .25s; }
#screenShot.is-swapping { opacity: 0; }
.screen-info h3 { font-size: 26px; margin: 0 0 14px; }
.screen-info > p { color: var(--ink-2); font-size: 14px; margin: 0 0 24px; }
.point-list { list-style: none; padding: 0; margin: 0 0 28px; }
.point-list li { position: relative; padding: 9px 0 9px 22px; font-size: 13.5px; color: var(--ink-2); border-bottom: 1px solid var(--edge); }
.point-list li::before { content: ""; position: absolute; left: 2px; top: 18px; width: 7px; height: 7px; border-radius: 2px; border: 1px solid var(--accent); background: rgba(76,141,255,.18); }

/* ---------- 下载区 ---------- */
.download-panel { position: relative; display: grid; grid-template-columns: minmax(0, 1.32fr) minmax(0, .68fr); gap: 0; border: 1px solid rgba(76,141,255,.28); border-radius: 24px; background: linear-gradient(120deg, rgba(20, 36, 60, .9), rgba(11, 20, 36, .94)); overflow: hidden; }
.dp-glow { position: absolute; width: 460px; height: 460px; top: -240px; right: -80px; border-radius: 50%; background: rgba(76,141,255,.28); filter: blur(90px); pointer-events: none; }
.dp-left { position: relative; min-width: 0; padding: 52px 54px; }
.dp-badge { display: inline-block; font: 600 11px/1 ui-monospace, Consolas, monospace; letter-spacing: 1.2px; color: var(--mist-light); padding: 9px 14px; border: 1px solid rgba(169,198,222,.3); border-radius: 999px; background: rgba(169,198,222,.08); }
.dp-left h2 { font-size: clamp(30px, 3.4vw, 42px); margin: 24px 0 12px; }
.dp-left > p { color: var(--ink-2); font-size: 14.5px; max-width: 560px; margin: 0 0 30px; }
.dp-left > p strong { color: var(--mist-light); }
.beta { font: 600 10px ui-monospace, Consolas, monospace; color: var(--accent); border: 1px solid rgba(76,141,255,.4); border-radius: 5px; padding: 2px 6px; margin-left: 6px; vertical-align: middle; }
.spec-table { margin: 0 0 22px; border-top: 1px solid var(--edge); }
.spec-table > div { display: grid; grid-template-columns: 108px 1fr; gap: 16px; padding: 11px 0; border-bottom: 1px solid var(--edge); font-size: 13.5px; }
.spec-table dt { color: var(--ink-3); }
.spec-table dd { margin: 0; color: var(--ink); word-break: break-all; }
.spec-table dd.mono { font-size: 12px; color: var(--mist); }
.checksum { display: flex; align-items: center; gap: 10px; padding: 11px 14px; border: 1px dashed rgba(169,198,222,.24); border-radius: 10px; background: rgba(255,255,255,.025); }
.checksum > span { font: 600 10px ui-monospace, Consolas, monospace; color: var(--ink-3); letter-spacing: 1px; flex-shrink: 0; }
.checksum code { flex: 1; min-width: 0; font-size: 10.5px; color: var(--mist); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.checksum button { flex-shrink: 0; border: 1px solid var(--edge); background: var(--surface); color: var(--ink-2); border-radius: 7px; padding: 4px 10px; font-size: 11px; transition: all .2s; }
.checksum button:hover { color: var(--ink); border-color: var(--edge-hi); }
.dp-right { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; min-width: 0; gap: 16px; padding: 48px 40px; border-left: 1px solid var(--edge); background: rgba(255,255,255,.018); text-align: center; }
.dp-icon img { border-radius: 22px; box-shadow: 0 16px 40px rgba(0,0,0,.45), 0 0 0 1px rgba(255,255,255,.14); }
.dp-note { margin: 0; font-size: 12.5px; color: var(--ink-3); }
.dp-divider { width: 100%; height: 1px; background: var(--edge); margin: 6px 0; }
.dp-tip { margin: 0; font-size: 12px; color: var(--ink-3); line-height: 1.7; text-align: left; }
.install-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; list-style: none; padding: 0; margin: 30px 0 0; border: 1px solid var(--edge); border-radius: var(--r); background: var(--surface); }
.install-steps li { display: flex; gap: 18px; padding: 24px 28px; border-left: 1px solid var(--edge); }
.install-steps li:first-child { border-left: 0; }
.install-steps li > span { font: 700 20px/1 ui-monospace, Consolas, monospace; color: var(--accent); }
.install-steps strong { display: block; font-size: 15px; margin-bottom: 5px; }
.install-steps p { margin: 0; font-size: 12.5px; color: var(--ink-3); }
.install-steps code { font-size: 11.5px; color: var(--mist); }

/* ---------- 关于 ---------- */
.about-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.about-card { padding: 34px 30px; border: 1px solid var(--edge); border-radius: var(--r); background: var(--surface); transition: border-color .3s, transform .3s var(--ease); }
.about-card:hover { border-color: rgba(169,198,222,.32); transform: translateY(-4px); }
.ac-no { display: block; font: 600 11px ui-monospace, Consolas, monospace; color: var(--accent); letter-spacing: 2px; margin-bottom: 22px; }
.about-card h3 { font-size: 20px; margin: 0 0 12px; }
.about-card p { font-size: 14px; color: var(--ink-2); margin: 0; }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--edge); background: rgba(6, 11, 19, .72); padding: 64px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand p { color: var(--ink-3); font-size: 13px; margin: 20px 0 18px; }
.footer-tag { display: inline-block; font: 600 10px ui-monospace, Consolas, monospace; letter-spacing: 1.6px; color: var(--mist); border: 1px solid rgba(169,198,222,.2); border-radius: 6px; padding: 5px 10px; }
.footer-col h4 { font-size: 14px; margin: 4px 0 20px; color: var(--ink); }
.footer-col a { display: block; font-size: 13px; color: var(--ink-3); padding: 6px 0; transition: color .2s; }
.footer-col a:hover { color: var(--mist-light); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; border-top: 1px solid var(--edge); padding-top: 24px; }
.footer-bottom p { margin: 0; font-size: 12px; color: var(--ink-3); }
.footer-legal { flex-basis: 100%; display: flex; flex-wrap: wrap; gap: 8px 22px; padding-top: 14px; font-size: 12px; color: var(--ink-3); }
.footer-legal a { color: var(--mist-light); text-decoration: none; }
.footer-legal a:hover { text-decoration: underline; }

/* ---------- 轻提示 ---------- */
.toast { position: fixed; z-index: 90; left: 50%; bottom: 34px; transform: translate(-50%, 20px); padding: 12px 20px; border: 1px solid var(--edge-hi); border-radius: 10px; background: rgba(16, 26, 42, .94); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); color: var(--ink); font-size: 13px; opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s; box-shadow: 0 14px 40px rgba(0,0,0,.45); }
.toast.is-show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 滚动出现 ---------- */
/* 只有 <html class="reveal-ready"> 时才隐藏待出现元素；无 JS 时全部内容照常显示 */
.reveal-ready [data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity .72s var(--ease), transform .72s var(--ease); }
.reveal-ready [data-reveal].is-visible { opacity: 1; transform: none; }
.feature-grid [data-reveal]:nth-child(2), .about-grid [data-reveal]:nth-child(2) { transition-delay: .08s; }
.feature-grid [data-reveal]:nth-child(3), .about-grid [data-reveal]:nth-child(3) { transition-delay: .16s; }
.feature-grid [data-reveal]:nth-child(4) { transition-delay: .24s; }

/* =========================== 响应式 =========================== */
@media (max-width: 1120px) {
  .main-nav { gap: 22px; }
  .screen-layout { grid-template-columns: 215px 1fr 230px; gap: 22px; }
  .phone-stage .phone-frame { width: 220px; }
  .dp-left { padding: 42px 38px; }
  .feature-banner { padding: 44px 40px; gap: 34px; }
  .spotlight-panel { padding: 44px 38px; gap: 30px; }
  .sp-copy h2 { font-size: clamp(28px, 3.2vw, 38px); }
  .sp-cta .btn-hero, .sp-cta .btn-ghost { padding-inline: 18px; }
  .fl-panel { padding: 40px 34px; gap: 28px; }
  .fl-copy h3 { font-size: clamp(24px, 2.6vw, 30px); }
  .fl-cta .btn-hero, .fl-cta .btn-ghost { padding-inline: 18px; }
}
@media (max-width: 940px) {
  .nav-toggle { display: block; }
  /* 窄屏仍保留顶部下载入口，只收起文字留图标 */
  .btn-nav { display: inline-flex; padding: 0 12px; }
  .btn-nav span { display: none; }
  /* hero-copy 用 align-items:center 后子项默认按内容撑宽，
     必须显式限宽，否则 flex-wrap 不生效、按钮与标签会横向溢出 */
  .hero-copy > * { max-width: 100%; }
  .cap-chips, .hero-cta, .hero-meta { width: 100%; }
  .main-nav { position: absolute; top: 76px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 24px 20px; background: rgba(7,13,22,.97); border-bottom: 1px solid var(--edge); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); }
  .main-nav.is-open { display: flex; }
  .nav-link { padding: 13px 4px; border-bottom: 1px solid var(--edge); }
  .nav-link::after { display: none; }
  .nav-toggle.is-open span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2) { opacity: 0; }
  .nav-toggle.is-open span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }
  .hero-inner { grid-template-columns: minmax(0, 1fr); gap: 0; text-align: center; min-height: 0; }
  .hero-copy { display: flex; flex-direction: column; align-items: center; }
  .hero-title { justify-content: center; }
  .hero-desc, .section-head p { margin-inline: auto; }
  .hero-cta, .cap-chips, .hero-meta { justify-content: center; }
  .hero-visual { min-height: 520px; margin-top: 10px; }
  .orbit-1 { width: 400px; height: 400px; }
  .orbit-2 { width: 480px; height: 480px; }
  .float-card-top { right: 6%; }
  .float-card-bottom { left: 6%; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card p { min-height: 0; }
  .feature-banner { grid-template-columns: 1fr; }
  .fb-visual { max-width: 236px; }
  .screen-layout { grid-template-columns: 1fr 1fr; }
  .screen-tabs { grid-column: 1 / -1; flex-direction: row; flex-wrap: wrap; }
  .screen-tab { width: auto; flex: 1 1 45%; }
  .screen-info { grid-column: 1 / -1; }
  .download-panel { grid-template-columns: minmax(0, 1fr); }
  .dp-right { border-left: 0; border-top: 1px solid var(--edge); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section.spotlight { padding-top: 8px; }
  .spotlight-panel { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .sp-visual { width: 100%; max-width: 560px; margin-inline: auto; }
  .sp-float { right: 0; }
  .feature-card-wide { flex-wrap: wrap; gap: 16px; }
  .fcw-side { flex-direction: row; align-items: center; justify-content: space-between; width: 100%; }
  .section.floating { padding-top: 8px; }
  /* 笔记本窗口未最大化或系统缩放时，仍保持「左文右图」，只做紧凑处理 */
  .fl-panel { grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr); gap: 22px; padding: 34px 28px; }
  .fl-copy h3 { font-size: 24px; }
  .fl-lead { font-size: 13.5px; }
  .fl-note { font-size: 10.8px; }
  .fl-top { gap: 9px; }
}
@media (max-width: 760px) {
  .fl-panel { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .fl-visual { width: 100%; max-width: 560px; margin-inline: auto; }
}
@media (max-width: 640px) {
  .wrap { width: calc(100% - 32px); }
  .pc-only { display: none; }
  .eyebrow { font-size: 9.5px; letter-spacing: 1px; padding: 8px 11px; gap: 7px; flex-wrap: wrap; justify-content: center; }
  .cap-chips { gap: 7px; }
  .cap-chips li { font-size: 11.5px; padding: 5px 11px; }
  html { scroll-padding-top: 72px; }
  .section { padding: 74px 0; }
  .hero { padding-top: 28px; padding-bottom: 50px; }
  .hero-title { gap: 14px; margin-top: 24px; }
  .title-cn { letter-spacing: 5px; }
  .hero-desc { font-size: 14px; }
  .hero-cta { width: 100%; flex-direction: column; }
  .btn-hero, .btn-ghost { width: 100%; }
  .btn-ghost { height: 52px; }
  .hero-meta { font-size: 11.5px; }
  .hero-meta span { padding: 0 8px; }
  /* 装饰光环/轨道是绝对定位且会旋转，不裁掉会把移动视口撑宽、触发浏览器自动缩放 */
  .hero-visual { min-height: 440px; overflow: hidden; }
  .halo { width: 340px; height: 340px; }
  .phone-hero .phone-frame { width: 232px; border-radius: 34px; }
  .phone-hero .phone-screen, .phone-hero .phone-glare { border-radius: 26px; }
  .orbit-1 { width: 320px; height: 320px; }
  .orbit-2 { width: 390px; height: 390px; }
  .float-card { padding: 9px 11px; }
  .float-card strong { font-size: 11.5px; }
  .float-card small { font-size: 10px; }
  .float-card-top { top: 30px; right: 0; }
  .float-card-bottom { bottom: 34px; left: 0; }
  .stat-bar { grid-template-columns: 1fr 1fr; }
  .stat { padding: 18px 14px; gap: 9px; border-bottom: 1px solid var(--edge); }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .stat strong { font-size: 24px; }
  .feature-grid, .about-grid { grid-template-columns: 1fr; }
  .feature-banner { padding: 32px 24px; }
  .fb-visual { max-width: 208px; }
  .screen-layout { grid-template-columns: 1fr; }
  .screen-tabs { grid-column: auto; }
  .screen-tab { flex: 1 1 100%; }
  .screen-stage { min-height: 460px; }
  .screen-info { grid-column: auto; }
  .dp-left { padding: 34px 24px; }
  .dp-right { padding: 34px 24px; }
  .spec-table > div { grid-template-columns: 88px minmax(0, 1fr); gap: 10px; font-size: 12.5px; }
  .checksum { flex-wrap: wrap; }
  .checksum code { flex-basis: 100%; order: 3; }
  .install-steps { grid-template-columns: 1fr; }
  .install-steps li { border-left: 0; border-bottom: 1px solid var(--edge); padding: 20px 22px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .hero-highlight { gap: 9px; padding: 10px 11px; }
  .hh-text em { font-size: 11.5px; }
  .hero-highlight > svg { display: none; }
  .section.spotlight { padding-bottom: 74px; }
  .spotlight-panel { padding: 30px 20px; border-radius: 18px; }
  .sp-badge { font-size: 9.5px; letter-spacing: .8px; padding: 9px 12px; }
  .sp-copy h2 { font-size: 27px; margin-top: 20px; }
  .sp-lead { font-size: 14px; }
  .sp-sub { font-size: 13px; }
  .sp-cta { flex-direction: column; width: 100%; }
  .sp-cta .btn-hero, .sp-cta .btn-ghost { width: 100%; }
  .sp-cta .btn-ghost { height: 50px; }
  /* 窄屏改为上下两台设备，扫码徽标独立占中间一行，避免横向溢出 */
  .sp-visual { grid-template-columns: minmax(0, 1fr); gap: 12px; padding: 18px 0 34px; }
  .sp-device { min-width: 0; max-width: 340px; width: 100%; margin-inline: auto; }
  .sp-device-control { grid-row: 1; transform: none; }
  .sp-bind { position: relative; top: auto; left: auto; transform: none; grid-row: 2; justify-self: center; flex-direction: row; padding: 8px 14px; }
  .sp-device-worker { grid-row: 3; transform: none; }
  .sp-beam { display: none; }
  .sd-screen { min-height: 0; }
  .sp-float { right: 0; bottom: 0; }
  .feature-card-wide { padding: 24px 20px; }
  .feature-card-wide .fc-icon { margin-bottom: 0; }
  .fcw-side { flex-direction: column; align-items: flex-start; gap: 10px; }
  .hero-highlights { grid-template-columns: minmax(0, 1fr); }
  .section.floating { padding-bottom: 74px; }
  .fl-head { margin-bottom: 30px; }
  .fl-head h2 { font-size: 27px; }
  .fl-head p { font-size: 14px; }
  .fl-panel { padding: 28px 18px; border-radius: 18px; }
  .fl-badge { font-size: 9.5px; letter-spacing: .4px; padding: 8px 10px; }
  .fl-copy h3 { font-size: 24px; }
  .fl-lead { font-size: 13.5px; }
  .fl-cta { flex-direction: column; width: 100%; }
  .fl-cta .btn-hero, .fl-cta .btn-ghost { width: 100%; }
  .fl-cta .btn-ghost { height: 50px; }
  /* 窄屏：主视觉占满宽度，三张关键图仍等宽并排，不错位 */
  .fl-top { grid-template-columns: minmax(0, .38fr) minmax(0, .62fr); gap: 7px; }
  .fl-full-phone { padding: 6px 6px 7px; border-radius: 11px; }
  .fl-full-phone img { border-radius: 6px; }
  .fl-full-phone figcaption { font-size: 9px; margin-top: 6px; }
  .fl-hero-shot { padding: 9px 9px 8px; border-radius: 14px; }
  .fl-hero-shot img { border-radius: 8px; }
  .fl-hero-shot figcaption { font-size: 10px; gap: 5px; margin-top: 8px; }
  .fl-row { gap: 7px; }
  .fl-row figure { padding: 5px 5px 6px; border-radius: 10px; }
  .fl-row img { border-radius: 6px; }
  .fl-row figcaption { font-size: 9px; gap: 3px; margin-top: 6px; }
  .fl-row .fz-key { width: 8px; height: 8px; }
}

/* 尊重系统减少动效设置 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal-ready [data-reveal] { opacity: 1; transform: none; }
  .sp-beam i { display: none; }
}

/* ============================================================
   H5 / 移动端优先增强
   官网主要被手机访问：统一导航高度与安全区、最小可读字号、
   触控目标 ≥40px，并让关键截图在窄屏真正看得清。
   放在最后，确保覆盖上面的 940 / 640 断点。
   ============================================================ */
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { -webkit-tap-highlight-color: transparent; }

@media (max-width: 940px) {
  .site-header { height: calc(64px + env(safe-area-inset-top)); padding-top: env(safe-area-inset-top); }
  .header-inner { gap: 14px; }
  .brand { min-height: 44px; }
  .brand img { width: 36px; height: 36px; }
  .brand-text strong { font-size: 17px; }
  .main-nav { top: calc(64px + env(safe-area-inset-top)); }
  html { scroll-padding-top: calc(64px + env(safe-area-inset-top)); }
  .site-footer { padding-bottom: calc(26px + env(safe-area-inset-bottom)); }
  .sub-header .btn-nav { height: 42px; padding: 0 12px; font-size: 12.5px; }
  .section.spotlight, .section.floating { overflow-x: clip; }
}

@media (max-width: 640px) {
  /* 1) 最小可读字号：移动端不再出现 8.5~10px 的说明文字 */
  .brand-text em { font-size: 10.5px; letter-spacing: 2.4px; }
  .eyebrow { font-size: 10.5px; }
  .float-card small { font-size: 11px; }
  .sp-badge, .fl-badge { font-size: 10.5px; }
  .sp-bind span, .sd-top { font-size: 11.5px; }
  .sd-top em { font-size: 10.5px; }
  .sd-foot { font-size: 11px; }
  .footer-tag { font-size: 11px; }
  .hero-highlights .hh-text strong { font-size: 12.5px; }
  .hero-highlights .hh-text em { font-size: 12px; }
  .cap-chips li { font-size: 12px; }
  .fl-note { font-size: 11.5px; line-height: 1.7; }
  .fz-tag { font-size: 11.5px; }
  .checksum > span, .checksum code { font-size: 11px; }
  .dp-tip, .dp-note { font-size: 12px; }

  /* 2) 触控目标 ≥40px */
  .text-link { min-height: 40px; padding-bottom: 6px; }
  #copySha { min-height: 40px; padding: 8px 14px; }
  .footer-col a { padding: 10px 0; }
  .footer-legal a, .footer-bottom a { display: inline-flex; align-items: center; min-height: 40px; }

  /* 3) 校验值在手机上完整折行显示，不再省略号截断 */
  .checksum code { white-space: normal; overflow: visible; text-overflow: clip;
                   overflow-wrap: anywhere; word-break: break-all; text-align: left; line-height: 1.6; }

  /* 4) 悬浮窗：绿框小窗特写整行置顶放大；完整真机长图作小卡；
        三张状态图由 3 列改 2 列 + 末张居中，避免每张只剩 90px 宽 */
  .fl-top { display: flex; flex-direction: column; gap: 12px; }
  .fl-hero-shot { order: -1; width: 100%; }
  .fl-hero-shot figcaption { font-size: 11.5px; }
  .fl-full-phone { width: 186px; margin-inline: auto; }
  .fl-full-phone figcaption { font-size: 10.5px; }
  .fl-row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .fl-row figure:last-child { grid-column: 1 / -1; width: 72%; margin-inline: auto; }
  .fl-row figcaption { font-size: 11px; }
  .fl-row .fz-key { width: 9px; height: 9px; }

  /* 5) 压缩纵向留白，缩短手机上的滚动距离 */
  .section { padding: 54px 0; }
  .hero { padding-top: 24px; padding-bottom: 40px; }
  .section.spotlight, .section.floating { padding-bottom: 54px; }
  .fl-panel, .spotlight-panel { padding: 22px 16px; }
  .dp-left, .dp-right { padding: 26px 20px; }
  .feature-banner { padding: 26px 18px; }
  .site-footer { padding-top: 44px; }
  .fl-head { margin-bottom: 22px; }
  .install-steps li { padding: 16px 18px; }
}

@media (max-width: 360px) {
  .wrap { width: calc(100% - 24px); }
  .brand-text em { display: none; }
  .btn-nav { padding: 0 9px; font-size: 12px; }
  .title-cn { letter-spacing: 3px; }
  .fl-full-phone { width: 160px; }
}

/* 641–940px：大屏手机 / 平板竖屏。上面 ≤640 的规则不覆盖这一档，
   但同样存在小字、小触控区和「三张关键图各只有 76px 宽」的问题。 */
@media (min-width: 641px) and (max-width: 940px) {
  .brand-text em { font-size: 10.5px; letter-spacing: 2.4px; }
  .sp-bind span, .sd-top { font-size: 11.5px; }
  .sd-top em { font-size: 10.5px; }
  .sd-foot { font-size: 11px; }
  .float-card small { font-size: 11px; }
  .fl-note { font-size: 11.5px; }
  .fz-tag { font-size: 11.5px; }
  .checksum > span, .checksum code { font-size: 11px; }
  .text-link { min-height: 40px; padding-bottom: 6px; }
  #copySha { min-height: 40px; padding: 8px 14px; }
  .footer-col a { padding: 10px 0; }
  .footer-legal a, .footer-bottom a { display: inline-flex; align-items: center; min-height: 40px; }
  .checksum code { white-space: normal; overflow: visible; text-overflow: clip;
                   overflow-wrap: anywhere; word-break: break-all; line-height: 1.6; }
  /* 右侧视觉区内部改为单列，关键绿框特写放大（外层仍保持左文右图） */
  .fl-top { display: flex; flex-direction: column; gap: 10px; }
  .fl-hero-shot { order: -1; width: 100%; }
  .fl-full-phone { width: 168px; margin-inline: auto; }
  .fl-row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
  .fl-row figure:last-child { grid-column: 1 / -1; width: 72%; margin-inline: auto; }
  .fl-row figcaption { font-size: 11px; }
  .fl-row .fz-key { width: 9px; height: 9px; }
}