:root {
  color-scheme: light;
  --ink: #141A16;
  --ink-2: #2E3731;
  --muted: #69736D;
  --muted-2: #929A95;
  --paper: #F7F8F5;
  --paper-2: #F1F3EF;
  --surface: #FFFFFF;
  --line: rgba(20, 36, 28, .10);
  --line-strong: rgba(20, 36, 28, .16);
  --green: #1C5B43;
  --green-deep: #14382C;
  --green-soft: #E8F0E9;
  --green-pale: #F0F5F0;
  --cream: #F4F0E6;
  --shadow-sm: 0 1px 2px rgba(15, 28, 21, .04), 0 8px 24px rgba(15, 28, 21, .05);
  --shadow-md: 0 2px 4px rgba(15, 28, 21, .04), 0 24px 70px rgba(15, 28, 21, .10);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --shell: 1180px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI Variable", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  --font-serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 2%, rgba(130, 168, 139, .09), transparent 28rem),
    var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.68;
  font-weight: 400;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img, svg { display: block; max-width: 100%; }
::selection { background: #CFE2D4; color: var(--green-deep); }

.skip-link { position: fixed; left: 12px; top: -80px; z-index: 200; padding: 10px 14px; border-radius: 10px; background: var(--green-deep); color: #fff; font-weight: 650; }
.skip-link:focus { top: 12px; }
.section-shell { width: min(var(--shell), calc(100% - 48px)); margin: 0 auto; }

.site-header { position: sticky; top: 0; z-index: 80; background: rgba(247, 248, 245, .82); border-bottom: 1px solid rgba(20, 36, 28, .07); backdrop-filter: saturate(140%) blur(18px); -webkit-backdrop-filter: saturate(140%) blur(18px); }
.nav-shell { width: 100%; padding: 0 24px; height: 68px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; font-weight: 690; letter-spacing: -.02em; }
.brand img { width: 34px; height: 34px; border-radius: 10px; box-shadow: 0 1px 2px rgba(0,0,0,.08); }
.brand span { font-size: 15px; }
.nav-links { display: flex; align-items: center; gap: 28px; margin-left: auto; color: var(--muted); font-size: 13px; font-weight: 520; }
.nav-links a { padding: 8px 0; transition: color .16s ease; }
.nav-links a:hover { color: var(--ink); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.nav-demo { min-height: 38px; display: inline-flex; align-items: center; justify-content: center; padding: 0 12px; border-radius: 10px; color: var(--muted); font-size: 13px; font-weight: 560; }
.nav-demo:hover { color: var(--ink); background: rgba(20,36,28,.045); }
.nav-download { min-height: 38px; display: inline-flex; align-items: center; justify-content: center; padding: 0 15px; border-radius: 11px; background: var(--green-deep); color: #fff; font-size: 13px; font-weight: 640; box-shadow: 0 4px 14px rgba(20,56,44,.14); transition: transform .16s ease, box-shadow .16s ease, background .16s ease; }
.nav-download:hover { transform: translateY(-1px); background: #0F3025; box-shadow: 0 7px 20px rgba(20,56,44,.18); }

.hero { min-height: 740px; display: grid; grid-template-columns: .92fr 1.08fr; gap: 64px; align-items: center; padding-top: 72px; padding-bottom: 90px; }
.hero-copy { max-width: 580px; }
.eyebrow, .section-kicker { margin: 0; color: var(--green); font-size: 12px; font-weight: 700; letter-spacing: .085em; }
.eyebrow { display: flex; align-items: center; gap: 10px; }
.eyebrow-line { width: 28px; height: 1px; background: var(--green); opacity: .8; }
.hero h1 { margin: 23px 0 24px; font-size: clamp(52px, 5.5vw, 76px); line-height: 1.06; letter-spacing: -.035em; font-weight: 760; text-wrap: balance; }
.hero h1 span { color: var(--green-deep); }
.hero-lead { max-width: 560px; margin: 0; color: #59645E; font-size: 17px; line-height: 1.9; letter-spacing: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 14px; padding: 0 19px; border: 1px solid transparent; border-radius: 13px; cursor: pointer; font-size: 14px; font-weight: 630; line-height: 1; transition: transform .16s ease, border-color .16s ease, background .16s ease, box-shadow .16s ease; }
.button:hover { transform: translateY(-1px); }
.button:focus-visible, .nav-download:focus-visible, .nav-demo:focus-visible, .nav-links a:focus-visible, .brand:focus-visible { outline: 3px solid rgba(28, 91, 67, .20); outline-offset: 3px; }
.button-primary { background: var(--green-deep); color: #fff; box-shadow: 0 10px 28px rgba(20,56,44,.16); }
.button-primary:hover { background: #0F3025; box-shadow: 0 14px 34px rgba(20,56,44,.20); }
.button-quiet { border-color: var(--line-strong); background: rgba(255,255,255,.72); color: var(--ink-2); box-shadow: 0 1px 1px rgba(20,36,28,.02); }
.button-quiet:hover { background: #fff; border-color: rgba(20,36,28,.22); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 26px; color: #737D77; font-size: 12px; }
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-meta i { width: 5px; height: 5px; border-radius: 999px; background: #6C9B7B; box-shadow: 0 0 0 4px rgba(108,155,123,.10); }

.hero-visual { position: relative; min-width: 0; min-height: 590px; display: grid; place-items: center; }
.visual-aura { position: absolute; inset: 10% 2% 4%; border-radius: 48% 52% 46% 54%; background: radial-gradient(circle at 45% 35%, rgba(220,231,218,.82), rgba(233,237,229,.42) 48%, rgba(247,248,245,0) 78%); filter: blur(2px); }
.desktop-frame { position: relative; z-index: 2; width: min(100%, 690px); overflow: hidden; border: 1px solid rgba(20,36,28,.13); border-radius: 24px; background: rgba(255,255,255,.97); box-shadow: var(--shadow-md); transform: rotate(.5deg); }
.frame-top { height: 50px; display: flex; align-items: center; justify-content: space-between; padding: 0 16px; border-bottom: 1px solid var(--line); background: #FCFDFC; }
.frame-brand { display: flex; align-items: center; gap: 8px; color: #435048; font-size: 11px; }
.frame-brand strong { font-weight: 650; }
.live-dot, .pulse-dot { width: 7px; height: 7px; border-radius: 50%; background: #5F9D73; box-shadow: 0 0 0 4px rgba(95,157,115,.11); }
.frame-room { padding: 5px 8px; border: 1px solid var(--line); border-radius: 8px; color: #778079; font-size: 10px; font-variant-numeric: tabular-nums; }
.frame-body { min-height: 390px; display: grid; grid-template-columns: 132px 1fr; }
.frame-side { padding: 18px 12px; border-right: 1px solid var(--line); background: #FAFBF9; }
.mini-label { display: block; margin: 0 4px 9px; color: #89918C; font-size: 9px; font-weight: 700; letter-spacing: .08em; }
.track-chip { display: flex; align-items: center; gap: 8px; padding: 8px; border: 1px solid var(--line); border-radius: 11px; background: #fff; }
.track-chip > b { width: 29px; height: 29px; display: grid; place-items: center; border-radius: 8px; background: var(--green-soft); color: var(--green); font-size: 10px; }
.track-chip span { min-width: 0; display: grid; }
.track-chip strong { max-width: 70px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 9px; }
.track-chip small { color: #8B938E; font-size: 8px; }
.members-label { margin-top: 28px; }
.avatar-row { display: flex; }
.avatar-row span { width: 27px; height: 27px; display: grid; place-items: center; margin-left: -4px; border: 2px solid #FAFBF9; border-radius: 50%; background: #E8ECE8; color: #637068; font-size: 8px; font-weight: 700; }
.avatar-row span:first-child { margin-left: 0; background: #DCEBDD; color: #396349; }
.score-paper { position: relative; min-height: 390px; padding: 24px 30px 26px; overflow: hidden; background: #FFFEFB; }
.score-heading { display: flex; justify-content: space-between; color: #5B625E; font-size: 9px; }
.score-heading strong { color: #303A34; font-size: 12px; letter-spacing: -.015em; }
.staff-block { position: absolute; left: 7%; right: 7%; top: 88px; height: 39px; }
.staff-block i, .tab-block i { position: absolute; left: 0; right: 0; height: 1px; background: #D7DBD8; }
.staff-block i:nth-child(1){top:0}.staff-block i:nth-child(2){top:8px}.staff-block i:nth-child(3){top:16px}.staff-block i:nth-child(4){top:24px}.staff-block i:nth-child(5){top:32px}
.note { position: absolute; width: 7px; height: 5px; overflow: hidden; border-radius: 50%; background: #303A34; color: transparent; transform: rotate(-18deg); }
.stem { position: absolute; width: 1px; height: 24px; background: #303A34; }
.n1{left:17%;top:15px}.s1{left:calc(17% + 6px);top:-3px}.n2{left:42%;top:7px}.s2{left:calc(42% + 6px);top:-11px}.n3{left:69%;top:23px}.s3{left:calc(69% + 6px);top:5px}
.tab-block { position: absolute; left: 7%; right: 7%; top: 148px; height: 49px; }
.tab-block i:nth-child(1){top:0}.tab-block i:nth-child(2){top:8px}.tab-block i:nth-child(3){top:16px}.tab-block i:nth-child(4){top:24px}.tab-block i:nth-child(5){top:32px}.tab-block i:nth-child(6){top:40px}
.tab-block span { position: absolute; left: 12%; top: 4px; color: #5E6962; font: 8px/40px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: 2.3px; white-space: nowrap; }
.playhead { position: absolute; left: 57%; top: 68px; bottom: 36px; width: 1px; background: rgba(37, 112, 73, .56); box-shadow: 0 0 0 4px rgba(37,112,73,.05); }
.staff-block.second { top: 245px; }.tab-block.second-tab { top: 305px; }
.n4{left:27%;top:11px}.s4{left:calc(27% + 6px);top:-7px}.n5{left:64%;top:19px}.s5{left:calc(64% + 6px);top:1px}
.frame-player { height: 58px; display: grid; grid-template-columns: 36px 1fr 34px 36px; gap: 10px; align-items: center; padding: 0 18px; border-top: 1px solid var(--line); color: #8B938E; font-size: 9px; font-variant-numeric: tabular-nums; }
.progress { position: relative; height: 3px; border-radius: 999px; background: #E4E8E4; }
.progress i { position: absolute; inset: 0 auto 0 0; width: 42%; border-radius: inherit; background: #5B906B; }
.progress b { position: absolute; left: 42%; top: 50%; width: 8px; height: 8px; border: 2px solid #5B906B; border-radius: 50%; background: #fff; transform: translate(-50%,-50%); }
.frame-player button { width: 31px; height: 31px; border: 0; border-radius: 50%; background: var(--green-deep); color: #fff; font-size: 9px; }
.phone-card { position: absolute; z-index: 4; right: -5px; bottom: 20px; width: 190px; padding: 18px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.96); box-shadow: var(--shadow-sm); transform: rotate(-2deg); }
.phone-kicker { color: #879089; font-size: 9px; font-weight: 700; letter-spacing: .08em; }
.phone-card strong { display: block; margin-top: 7px; font-size: 14px; letter-spacing: -.015em; }
.phone-card p { margin: 5px 0 15px; color: #7D8680; font-size: 10px; line-height: 1.5; }
.phone-score { position: relative; height: 74px; overflow: hidden; border-radius: 10px; background: #FAFAF7; }
.phone-score i { position: absolute; left: 12px; right: 12px; height: 1px; background: #D8DDD9; }
.phone-score i:nth-child(1){top:22px}.phone-score i:nth-child(2){top:30px}.phone-score i:nth-child(3){top:38px}.phone-score i:nth-child(4){top:46px}.phone-score i:nth-child(5){top:54px}
.phone-score span { position: absolute; left: 55%; top: 12px; width: 1px; height: 52px; background: rgba(37,112,73,.55); }

.statement { padding-top: 34px; padding-bottom: 110px; text-align: center; }
.statement p { margin: 0 auto; color: #253128; font-family: var(--font-serif); font-size: clamp(31px, 4vw, 50px); line-height: 1.46; letter-spacing: .01em; font-weight: 500; }
.statement span { display: block; margin-top: 20px; color: #7E8781; font-size: 13px; }
.mobile-break { display: none; }

.product-section { padding-top: 102px; padding-bottom: 116px; }
.section-head { max-width: 800px; margin-bottom: 44px; }
.section-kicker { margin-bottom: 12px; }
.section-head h2, .workflow-copy h2, .demo-copy h2, .download-copy h2 { margin: 0; font-size: clamp(36px, 4.4vw, 56px); line-height: 1.16; letter-spacing: -.028em; font-weight: 720; text-wrap: balance; }
.section-head > p:last-child, .workflow-copy > p:last-child, .demo-copy > p:last-child, .download-copy > p { max-width: 660px; margin: 18px 0 0; color: var(--muted); font-size: 15px; line-height: 1.82; }
.bento-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 14px; }
.bento { position: relative; overflow: hidden; min-height: 360px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: rgba(255,255,255,.82); box-shadow: 0 1px 0 rgba(255,255,255,.7) inset; }
.bento-score { min-height: 540px; background: linear-gradient(180deg, rgba(239,245,239,.84), rgba(255,255,255,.92)); }
.bento-lan { min-height: 540px; }
.bento-track, .bento-web { min-height: 350px; }
.feature-number { display: block; margin-bottom: 20px; color: #829087; font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.bento h3 { max-width: 520px; margin: 0; font-size: 25px; line-height: 1.28; letter-spacing: -.025em; font-weight: 680; }
.bento p { max-width: 550px; margin: 12px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.feature-score-visual { position: absolute; left: 30px; right: 30px; bottom: 30px; height: 250px; overflow: hidden; border: 1px solid #E0E5E0; border-radius: 18px; background: #FFFEFB; box-shadow: 0 14px 38px rgba(20,36,28,.06); }
.feature-score-title { padding: 16px 18px; color: #69736D; font-size: 10px; border-bottom: 1px solid #EEF0ED; }
.feature-staff, .feature-tab { position: absolute; left: 7%; right: 7%; height: 50px; background: repeating-linear-gradient(to bottom, #D8DDD9 0 1px, transparent 1px 10px); }
.feature-staff { top: 85px; }.feature-tab { top: 158px; background: repeating-linear-gradient(to bottom, #E0E4E1 0 1px, transparent 1px 9px); }
.feature-cursor { position: absolute; top: 62px; bottom: 25px; left: 51%; width: 1px; background: rgba(46,112,73,.62); box-shadow: 0 0 0 5px rgba(46,112,73,.05); }
.lan-diagram { position: absolute; left: 28px; right: 28px; bottom: 32px; min-height: 250px; display: grid; grid-template-columns: 1fr 70px 1.3fr; align-items: center; }
.lan-host { width: 112px; height: 112px; display: grid; place-items: center; justify-self: center; border-radius: 30px; background: var(--green-deep); color: #fff; text-align: center; font-size: 14px; font-weight: 700; line-height: 1.2; box-shadow: 0 14px 36px rgba(20,56,44,.16); }
.lan-host small { display: block; margin-top: 5px; color: rgba(255,255,255,.58); font-size: 9px; font-weight: 500; }
.lan-diagram > span { position: relative; height: 1px; background: #CDD7D0; }
.lan-diagram > span::after { content: ''; position: absolute; right: -1px; top: -3px; width: 7px; height: 7px; border-top: 1px solid #9FB0A4; border-right: 1px solid #9FB0A4; transform: rotate(45deg); }
.lan-clients { display: grid; gap: 10px; }
.lan-clients b { min-height: 44px; display: flex; align-items: center; padding: 0 14px; border: 1px solid var(--line); border-radius: 13px; background: #FAFBFA; color: #57635C; font-size: 11px; font-weight: 620; }
.track-list { position: absolute; left: 28px; right: 28px; bottom: 28px; display: grid; gap: 7px; }
.track-list > div { min-height: 62px; display: flex; align-items: center; gap: 10px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 14px; background: #FAFBFA; }
.track-list > div:first-child { border-color: rgba(28,91,67,.18); background: #F0F5F0; }
.track-list i { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: #E7ECE8; color: #526059; font-size: 10px; font-style: normal; font-weight: 720; }
.track-list div:first-child i { background: #DDEBDF; color: var(--green); }
.track-list span { min-width: 0; flex: 1; display: grid; }
.track-list strong { font-size: 11px; }.track-list small { color: #8A938E; font-size: 9px; }.track-list b { color: var(--green); font-size: 13px; }
.web-pill { position: absolute; left: 28px; bottom: 30px; display: inline-flex; align-items: center; gap: 9px; padding: 10px 13px; border: 1px solid rgba(28,91,67,.12); border-radius: 12px; background: #F1F6F2; color: #486152; font: 10px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.workflow-section { padding: 112px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #EEF1EC; }
.workflow-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 92px; }
.workflow-copy { position: sticky; top: 110px; align-self: start; }
.workflow-steps { list-style: none; margin: 0; padding: 0; }
.workflow-steps li { display: grid; grid-template-columns: 52px 1fr; gap: 18px; padding: 25px 0; border-bottom: 1px solid rgba(20,36,28,.10); }
.workflow-steps li:first-child { border-top: 1px solid rgba(20,36,28,.10); }
.workflow-steps > li > span { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid rgba(20,36,28,.10); border-radius: 12px; background: rgba(255,255,255,.68); color: var(--green); font-size: 10px; font-weight: 720; font-variant-numeric: tabular-nums; }
.workflow-steps strong { display: block; padding-top: 2px; font-size: 16px; font-weight: 650; letter-spacing: -.012em; }
.workflow-steps p { margin: 5px 0 0; color: var(--muted); font-size: 13px; line-height: 1.7; }

.demo-section { margin-top: 108px; margin-bottom: 18px; min-height: 250px; display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 40px; padding: 40px 42px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: rgba(255,255,255,.70); }
.demo-copy { max-width: 760px; }
.demo-copy h2 { font-size: clamp(31px,3.5vw,44px); }
.demo-button { align-self: end; white-space: nowrap; }

.download-section { padding-top: 18px; padding-bottom: 108px; }
.download-panel { position: relative; overflow: hidden; min-height: 400px; display: grid; grid-template-columns: 1.12fr .88fr; padding: 56px 60px; border-radius: var(--radius-xl); background: var(--green-deep); color: #fff; box-shadow: 0 18px 50px rgba(20,56,44,.13); }
.section-kicker.light { color: #B8D3C0; }
.download-copy { position: relative; z-index: 3; align-self: center; }
.download-copy h2 { max-width: 680px; color: #fff; }
.download-copy > p { color: rgba(255,255,255,.67); }
.download-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.button-light { background: #F6F7F2; color: #17362B; box-shadow: 0 10px 24px rgba(0,0,0,.10); }
.button-light:hover { background: #fff; }
.button-dark-quiet { border-color: rgba(255,255,255,.18); background: rgba(255,255,255,.05); color: rgba(255,255,255,.86); }
.button-dark-quiet:hover { background: rgba(255,255,255,.09); }
.download-copy small { display: block; margin-top: 16px; color: rgba(255,255,255,.40); font-size: 10px; }
.download-art { position: relative; display: grid; place-items: center; min-height: 260px; }
.download-ring { position: absolute; border: 1px solid rgba(215,232,219,.12); border-radius: 50%; }
.download-ring.r1 { width: 240px; height: 240px; }.download-ring.r2 { width: 340px; height: 340px; }
.download-icon { position: relative; z-index: 2; width: 122px; height: 122px; padding: 18px; border: 1px solid rgba(255,255,255,.16); border-radius: 34px; background: rgba(255,255,255,.08); box-shadow: 0 24px 60px rgba(0,0,0,.14); transform: rotate(-4deg); }
.download-icon img { width: 100%; height: 100%; border-radius: 24px; }

.site-footer { padding: 30px 0 38px; border-top: 1px solid var(--line); }
.footer-shell { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 32px; }
.footer-brand { display: flex; align-items: center; gap: 9px; }
.footer-brand img { border-radius: 9px; }
.footer-brand div { display: grid; }
.footer-brand strong { font-size: 14px; font-weight: 650; }.footer-brand span { color: #8C948F; font-size: 11px; }
.footer-shell > p { margin: 0; color: #89918C; font-size: 12.5px; line-height: 1.7; }
.footer-links { display: flex; gap: 18px; color: #6F7972; font-size: 12.5px; }
.footer-links a:hover { color: var(--ink); }

[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .62s cubic-bezier(.2,.7,.2,1), transform .62s cubic-bezier(.2,.7,.2,1); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* 局域网展示 / 试用页 */
.demo-page { min-height: 100dvh; background: radial-gradient(circle at 50% 0, rgba(126,164,137,.11), transparent 32rem), var(--paper); }
.demo-header .nav-shell { justify-content: space-between; }
.back-link { margin-left: auto; }
.demo-main { min-height: calc(100dvh - 68px); display: grid; place-items: center; padding: 54px 20px 72px; }
.demo-card { width: min(100%, 620px); padding: 42px; border: 1px solid var(--line); border-radius: 28px; background: rgba(255,255,255,.88); box-shadow: var(--shadow-md); }
.demo-card h1 { margin: 10px 0 12px; font-size: clamp(32px,6vw,46px); line-height: 1.16; letter-spacing: -.04em; font-weight: 720; }
.demo-intro { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.privacy-note { display: flex; gap: 11px; margin: 24px 0 26px; padding: 14px 15px; border: 1px solid rgba(28,91,67,.12); border-radius: 14px; background: #F0F5F0; }
.privacy-note > span { width: 25px; height: 25px; display: grid; place-items: center; flex: none; border-radius: 50%; background: #DDEADF; color: var(--green); font-size: 11px; font-weight: 800; }
.privacy-note p { margin: 0; color: #5C6D61; font-size: 11px; line-height: 1.7; }.privacy-note strong { color: #3E5546; font-weight: 670; }
.local-form { display: grid; gap: 18px; }
.local-field { display: grid; gap: 7px; }
.local-field > span { color: #3E4842; font-size: 12px; font-weight: 650; }
.local-field input { width: 100%; height: 50px; border: 1px solid rgba(20,36,28,.15); border-radius: 12px; padding: 0 14px; outline: none; background: #FCFDFC; color: var(--ink); font-size: 16px; transition: border-color .16s ease, box-shadow .16s ease, background .16s ease; }
.local-field input::placeholder { color: #A4ABA7; }
.local-field input:focus { border-color: rgba(28,91,67,.5); background: #fff; box-shadow: 0 0 0 4px rgba(28,91,67,.09); }
.local-field small { color: #949C97; font-size: 10px; }
.local-error { margin: -8px 0 0; padding: 10px 12px; border: 1px solid #F2D1CF; border-radius: 10px; background: #FFF4F2; color: #9C4139; font-size: 11px; }
.local-submit { width: 100%; }
.demo-divider { position: relative; margin: 28px 0 20px; text-align: center; }
.demo-divider::before { content: ''; position: absolute; left: 0; right: 0; top: 50%; height: 1px; background: var(--line); }
.demo-divider span { position: relative; padding: 0 10px; background: rgba(255,255,255,.88); color: #9AA19D; font-size: 10px; }
.paste-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.paste-row .button { min-width: 74px; min-height: 50px; }
.demo-help { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.demo-help h2 { margin: 0 0 5px; font-size: 13px; font-weight: 650; }.demo-help p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.75; }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 34px; padding-top: 58px; }
  .hero-copy { max-width: 760px; }
  .hero-visual { min-height: 570px; }
  .bento-grid { grid-template-columns: 1fr 1fr; }
  .bento-score, .bento-lan { min-height: 500px; }
  .workflow-layout { grid-template-columns: 1fr; gap: 38px; }
  .workflow-copy { position: static; max-width: 760px; }
  .download-panel { grid-template-columns: 1fr .6fr; }
}

@media (max-width: 760px) {
  .section-shell { width: min(100% - 30px, var(--shell)); }
  .nav-shell { width: 100%; padding: 0 20px; height: 62px; gap: 10px; }
  .nav-links { display: none; }
  .nav-actions { margin-left: auto; }
  .nav-demo { display: none; }
  .nav-download { min-height: 36px; padding: 0 12px; font-size: 11px; }
  .brand span { font-size: 14px; }
  .hero { min-height: auto; gap: 28px; padding-top: 48px; padding-bottom: 70px; }
  .hero h1 { font-size: clamp(45px, 13vw, 61px); line-height: 1.07; letter-spacing: -.03em; }
  .hero-lead { font-size: 16px; line-height: 1.82; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .button { min-height: 48px; }
  .hero-visual { min-height: 430px; }
  .desktop-frame { border-radius: 20px; transform: none; }
  .frame-body { grid-template-columns: 90px 1fr; min-height: 300px; }
  .frame-side { padding: 13px 8px; }.track-chip { padding: 6px; }.track-chip > b { width: 25px; height: 25px; }.track-chip strong { max-width: 42px; font-size: 7px; }.track-chip small { font-size: 6px; }.mini-label { font-size: 7px; }.avatar-row span { width: 23px; height: 23px; }
  .score-paper { min-height: 300px; padding: 18px 16px; }
  .staff-block { top: 67px; }.tab-block { top: 122px; }.staff-block.second { top: 190px; }.tab-block.second-tab { top: 245px; }.playhead { top: 52px; bottom: 24px; }
  .frame-player { height: 50px; grid-template-columns: 30px 1fr 30px 30px; padding: 0 12px; }
  .phone-card { width: 154px; right: -5px; bottom: -12px; padding: 13px; border-radius: 16px; }
  .phone-card strong { font-size: 11px; }.phone-card p { font-size: 8px; }.phone-score { height: 54px; }
  .statement { padding-top: 0; padding-bottom: 78px; }
  .mobile-break { display: block; }
  .product-section { padding-top: 76px; padding-bottom: 82px; }
  .section-head h2, .workflow-copy h2, .download-copy h2 { font-size: clamp(34px,10vw,44px); }
  .section-head > p:last-child, .workflow-copy > p:last-child, .demo-copy > p:last-child, .download-copy > p { font-size: 14px; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento { padding: 24px; }.bento-score, .bento-lan { min-height: 460px; }.bento-track, .bento-web { min-height: 330px; }
  .feature-score-visual { left: 24px; right: 24px; bottom: 24px; height: 210px; }.lan-diagram { left: 22px; right: 22px; grid-template-columns: 1fr 44px 1.2fr; }.lan-host { width: 94px; height: 94px; border-radius: 26px; }.track-list { left: 22px; right: 22px; bottom: 22px; }.web-pill { left: 22px; bottom: 24px; }
  .workflow-section { padding: 80px 0; }.workflow-steps li { grid-template-columns: 46px 1fr; gap: 13px; }
  .demo-section { grid-template-columns: 1fr; align-items: start; margin-top: 76px; padding: 28px; }.demo-button { justify-self: start; }
  .download-section { padding-bottom: 78px; }.download-panel { grid-template-columns: 1fr; padding: 38px 28px; border-radius: 26px; }.download-art { min-height: 220px; }.download-ring.r1 { width: 190px; height: 190px; }.download-ring.r2 { width: 270px; height: 270px; }.download-icon { width: 104px; height: 104px; }
  .footer-shell { grid-template-columns: 1fr auto; gap: 18px; }.footer-shell > p { grid-column: 1 / -1; grid-row: 2; }.footer-links { gap: 12px; }.footer-links a:last-child { display: none; }
  .demo-main { padding-top: 34px; }.demo-card { padding: 28px 22px; border-radius: 22px; }.paste-row { grid-template-columns: 1fr; }.paste-row .button { width: 100%; }
}

@media (max-width: 420px) {
  .brand img { width: 31px; height: 31px; }.brand span { font-size: 13px; }.nav-download { padding: 0 10px; }
  .hero-meta { gap: 11px; font-size: 10px; }.hero-visual { min-height: 390px; }.frame-side { display: none; }.frame-body { grid-template-columns: 1fr; }.desktop-frame { width: calc(100% - 4px); }.phone-card { bottom: -18px; }
  .statement p { font-size: 30px; }.bento h3 { font-size: 22px; }.bento p { font-size: 12px; }
  .footer-links a:nth-child(2) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ============================================================
   UI polish v2 · 2026-08
   目标：更舒展的中文排版、更稳的自适应卡片、突出“进入现场”。
   ============================================================ */
:root {
  --ink: #111714;
  --ink-2: #303A34;
  --muted: #66716A;
  --muted-2: #8B948E;
  --paper: #F6F7F4;
  --paper-2: #EFF2ED;
  --surface: #FFFFFF;
  --line: rgba(17, 35, 26, .095);
  --line-strong: rgba(17, 35, 26, .15);
  --green: #1E6248;
  --green-deep: #112D22;
  --green-soft: #E5EFE7;
  --green-pale: #EEF5F0;
  --shadow-sm: 0 1px 2px rgba(13, 28, 20, .035), 0 10px 30px rgba(13, 28, 20, .045);
  --shadow-md: 0 2px 4px rgba(13, 28, 20, .035), 0 28px 80px rgba(13, 28, 20, .085);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
}

body {
  line-height: 1.72;
  letter-spacing: 0;
  text-rendering: geometricPrecision;
}

.site-header {
  background: rgba(246, 247, 244, .9);
  border-bottom-color: rgba(17, 35, 26, .065);
}
.nav-shell { height: 70px; gap: 26px; }
.brand { gap: 9px; font-weight: 650; letter-spacing: 0; }
.brand span { font-size: 15px; }
.nav-links { gap: 30px; font-size: 13px; font-weight: 500; }
.nav-actions { margin-left: 4px; gap: 8px; }
.nav-download,
.nav-enter {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 11px;
  font-size: 13px;
  line-height: 1;
  font-weight: 600;
  transition: transform .16s ease, border-color .16s ease, background .16s ease, color .16s ease, box-shadow .16s ease;
}
.nav-download {
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, .68);
  color: var(--ink-2);
  box-shadow: none;
}
.nav-download:hover {
  transform: translateY(-1px);
  border-color: rgba(17,35,26,.22);
  background: #fff;
  color: var(--ink);
  box-shadow: none;
}
.nav-enter {
  gap: 9px;
  padding: 0 16px;
  background: #10291F;
  color: #fff;
  box-shadow: 0 8px 22px rgba(16, 41, 31, .16);
}
.nav-enter:hover { transform: translateY(-1px); background: #0A2118; box-shadow: 0 11px 28px rgba(16,41,31,.2); }
.nav-enter:focus-visible { outline: 3px solid rgba(30,98,72,.22); outline-offset: 3px; }

.hero { min-height: 720px; gap: 70px; padding-top: 76px; padding-bottom: 96px; }
.hero h1 {
  margin: 24px 0 24px;
  font-size: clamp(50px, 5.25vw, 74px);
  line-height: 1.09;
  letter-spacing: -.018em;
  font-weight: 680;
}
.hero-lead {
  max-width: 570px;
  color: #5A655F;
  font-size: 17px;
  line-height: 1.86;
  text-wrap: pretty;
}
.eyebrow, .section-kicker { letter-spacing: .07em; }
.button { border-radius: 12px; font-weight: 600; }
.hero-meta { margin-top: 27px; color: #707A74; }

.phone-card { width: 210px; padding: 18px 18px 17px; }
.phone-card strong { margin-top: 7px; font-size: 13px; line-height: 1.45; font-weight: 650; letter-spacing: 0; }
.phone-card p { margin-top: 6px; }

.statement p {
  font-size: clamp(30px, 3.8vw, 48px);
  line-height: 1.52;
  letter-spacing: .018em;
  font-weight: 500;
}
.statement span { font-size: 14px; }

.section-head { max-width: 850px; margin-bottom: 48px; }
.section-head h2,
.workflow-copy h2,
.live-copy h2,
.download-copy h2 {
  margin: 0;
  font-size: clamp(35px, 4.2vw, 54px);
  line-height: 1.2;
  letter-spacing: -.008em;
  font-weight: 650;
  text-wrap: balance;
}
.section-head > p:last-child,
.workflow-copy > p:last-child,
.live-copy > p:last-child,
.download-copy > p {
  max-width: 690px;
  margin: 19px 0 0;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.82;
  text-wrap: pretty;
}

/* 所有功能卡片改为正常文档流，避免不同字体/窗口尺寸下文字与插图互相遮挡。 */
.bento-grid { gap: 16px; }
.bento {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 32px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.86);
}
.bento-score { min-height: 540px; }
.bento-lan { min-height: 540px; }
.bento-track, .bento-web { min-height: 390px; }
.feature-number { margin-bottom: 18px; font-size: 11px; }
.bento h3 {
  max-width: 560px;
  margin: 0;
  font-size: 25px;
  line-height: 1.34;
  letter-spacing: 0;
  font-weight: 620;
  text-wrap: balance;
}
.bento p {
  max-width: 570px;
  margin: 13px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.78;
  text-wrap: pretty;
}
.feature-score-visual,
.lan-diagram,
.track-list,
.web-pill {
  position: relative;
  left: auto;
  right: auto;
  bottom: auto;
}
.feature-score-visual {
  width: 100%;
  height: 250px;
  margin-top: auto;
  padding-top: 0;
}
.lan-diagram {
  width: 100%;
  min-height: 250px;
  margin-top: auto;
}
.track-list {
  width: 100%;
  margin-top: 28px;
  gap: 9px;
}
.track-list > div { min-height: 64px; border-radius: 13px; }
.track-list strong { font-size: 12px; font-weight: 650; }
.track-list small { margin-top: 1px; font-size: 10px; }
.web-pill {
  margin-top: auto;
  align-self: flex-start;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 10px;
}

.workflow-section { background: #EDF0EB; }
.workflow-steps li { padding: 27px 0; }
.workflow-steps strong { font-size: 16px; font-weight: 620; }
.workflow-steps p { font-size: 13.5px; }

/* 首页的现场入口：比普通卡片更有辨识度，但仍保持作品站的克制感。 */
.live-section {
  margin-top: 108px;
  margin-bottom: 18px;
  min-height: 285px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 48px;
  padding: 44px 46px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 88% 12%, rgba(126,172,142,.19), transparent 22rem),
    #122B21;
  color: #fff;
  box-shadow: 0 20px 54px rgba(17, 45, 34, .12);
}
.live-copy { max-width: 780px; }
.live-copy h2 { color: #fff; font-size: clamp(31px, 3.6vw, 46px); }
.live-copy > p:last-child { color: rgba(255,255,255,.63); }
.button-live {
  min-width: 126px;
  background: #F6F7F3;
  color: #17362B;
  box-shadow: 0 10px 28px rgba(0,0,0,.12);
}
.button-live:hover { background: #fff; }

.download-section { padding-top: 18px; }
.download-panel { padding: 58px 62px; border-radius: 26px; }
.download-copy small { font-size: 11px; }

/* “进入现场”页：不做后台请求，只构造局域网跳转。 */
.live-page {
  min-height: 100dvh;
  background:
    radial-gradient(circle at 50% -10%, rgba(126,164,137,.13), transparent 36rem),
    var(--paper);
}
.live-header .nav-shell { justify-content: space-between; }
.back-link {
  margin-left: auto;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 13px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 550;
}
.back-link:hover { background: rgba(17,35,26,.045); color: var(--ink); }
.live-main { min-height: calc(100dvh - 70px); display: grid; place-items: center; padding: 58px 20px 76px; }
.live-card {
  width: min(100%, 660px);
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: rgba(255,255,255,.91);
  box-shadow: var(--shadow-md);
}
.live-card h1 {
  margin: 10px 0 12px;
  font-size: clamp(34px,6vw,48px);
  line-height: 1.16;
  letter-spacing: -.01em;
  font-weight: 650;
}
.live-intro { margin: 0; color: var(--muted); font-size: 14.5px; line-height: 1.82; text-wrap: pretty; }
.primary-url-field { margin-top: 4px; }
.live-divider { position: relative; margin: 28px 0 22px; text-align: center; }
.live-divider::before { content: ''; position: absolute; left: 0; right: 0; top: 50%; height: 1px; background: var(--line); }
.live-divider span { position: relative; padding: 0 11px; background: #fff; color: #959D98; font-size: 10px; }
.live-help { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.live-help h2 { margin: 0 0 6px; font-size: 14px; font-weight: 650; }
.live-help p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.72; }

@media (max-width: 980px) {
  .bento-score, .bento-lan { min-height: 520px; }
}

@media (max-width: 760px) {
  .nav-shell { height: 64px; }
  .nav-actions { gap: 6px; }
  .nav-download, .nav-enter { min-height: 38px; font-size: 11px; border-radius: 10px; }
  .nav-download { padding: 0 10px; }
  .nav-enter { padding: 0 12px; }
  .hero { padding-top: 50px; padding-bottom: 76px; }
  .hero h1 { font-size: clamp(43px, 12.5vw, 59px); line-height: 1.1; letter-spacing: -.014em; }
  .hero-lead { font-size: 16px; }
  .phone-card { width: 168px; }
  .section-head h2, .workflow-copy h2, .download-copy h2, .live-copy h2 { font-size: clamp(33px,9.6vw,43px); }
  .section-head > p:last-child, .workflow-copy > p:last-child, .live-copy > p:last-child, .download-copy > p { font-size: 14.5px; }
  .bento { padding: 26px; }
  .bento-score, .bento-lan { min-height: 470px; }
  .bento-track, .bento-web { min-height: auto; }
  .feature-score-visual { width: 100%; height: 214px; margin-top: 30px; }
  .lan-diagram { width: 100%; min-height: 220px; margin-top: 26px; grid-template-columns: 1fr 44px 1.2fr; }
  .track-list { width: 100%; margin-top: 26px; }
  .web-pill { margin-top: 28px; }
  .live-section { grid-template-columns: 1fr; align-items: start; margin-top: 78px; gap: 28px; padding: 32px 28px; }
  .button-live { justify-self: start; }
  .live-main { padding-top: 36px; }
  .live-card { padding: 30px 23px; border-radius: 22px; }
  .download-panel { padding: 40px 30px; }
}

/* 隐私政策弹窗 */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(17, 35, 26, .45);
  backdrop-filter: blur(4px);
}
.modal-overlay[hidden] { display: none; }
.modal-card {
  position: relative;
  width: min(100%, 640px);
  max-height: 80vh;
  overflow-y: auto;
  padding: 34px 36px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--shadow-md);
}
.modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 50%;
  background: var(--paper-2);
  color: var(--muted);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}
.modal-close:hover { background: #E2E6E1; color: var(--ink); }
.modal-card h2 { margin: 0 0 14px; font-size: 22px; font-weight: 650; }
.modal-card h3 { margin: 18px 0 6px; font-size: 14px; font-weight: 650; color: var(--green-deep); }
.modal-card p { margin: 0 0 10px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.modal-card a { color: var(--green); }

/* 页脚备案号 */
.footer-icp {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 16px;
  margin-top: 12px;
  color: #89918C;
  font-size: 12px;
  line-height: 1.6;
}
.footer-icp a {
  color: #89918C;
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-icp a:hover {
  color: var(--ink);
  text-decoration: underline;
}
.footer-icp .footer-divider {
  color: #C8CEC9;
  user-select: none;
}
.footer-icp .beian-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.footer-icp .beian-icon {
  width: auto;
  height: 16px;
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .brand span { font-size: 13px; }
  .nav-download { display: none; }
  .nav-enter { min-height: 38px; padding: 0 13px; font-size: 11.5px; }
  .hero-meta { font-size: 10.5px; }
  .bento h3 { font-size: 23px; }
  .bento p { font-size: 13.5px; }
  .track-list > div { min-height: 60px; }
  .footer-icp .footer-divider { display: none; }
}