:root {
  --ink: #092a24;
  --ink-soft: #294b55;
  --paper: #fffdf8;
  --paper-soft: #f6f1e8;
  --acid: #ed252d;
  --teal: #0f4e4a;
  --teal-deep: #092a24;
  --orange: #ff645d;
  --green: #65d66b;
  --sky: #159ee3;
  --sky-strong: #0678cd;
  --sky-soft: #e7f7ff;
  --cloud: #eef8ff;
  --glass-border: rgba(255, 255, 255, 0.72);
  --shadow-soft: 0 18px 48px rgba(39, 105, 153, 0.11);
  --shadow-card: 0 24px 70px rgba(31, 112, 162, 0.16);
  --line-dark: rgba(255, 255, 255, 0.13);
  --line-light: rgba(72, 124, 151, 0.18);
  --muted: #637985;
  --radius: 22px;
  --mono: ui-monospace, SFMono-Regular, Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: Inter, "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 4%, rgba(255, 224, 112, 0.14), rgba(0, 0, 0, 0) 24%),
    radial-gradient(circle at 92% 12%, rgba(21, 158, 227, 0.14), rgba(0, 0, 0, 0) 30%),
    linear-gradient(rgb(255, 253, 248) 0%, rgb(246, 249, 251) 52%, rgb(251, 250, 246) 100%);
  background-attachment: fixed;
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

.skip-link { position: absolute; left: -9999px; top: 0; background: var(--sky-strong); color: #fff; padding: 8px 16px; z-index: 200; }
.skip-link:focus { left: 12px; top: 12px; border-radius: 8px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 999px; padding: 10px 22px; font-size: 15px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space: nowrap;
}
.btn-primary { background: linear-gradient(135deg, #0678cd, #159ee3 58%, #15b8c6); color: #fff; border-color: rgba(255, 255, 255, 0.24); box-shadow: 0 12px 28px rgba(6, 120, 205, 0.28); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 36px rgba(6, 120, 205, 0.36); }
.btn-primary:disabled { opacity: .55; cursor: wait; transform: none; }
.btn-ghost { background: rgba(255, 255, 255, 0.62); color: var(--ink); border-color: var(--line-light); backdrop-filter: blur(6px); }
.btn-ghost:hover { transform: translateY(-2px); background: rgba(255, 255, 255, 0.9); }
.btn-lg { padding: 13px 28px; font-size: 16px; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 80;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(232, 248, 255, 0.62));
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(117, 173, 204, 0.18);
  box-shadow: 0 8px 32px rgba(39, 105, 153, 0.07);
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 12px; background: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  overflow: hidden; box-shadow: 0 6px 18px rgba(13, 148, 136, 0.2);
}
.brand-mark img { width: 100%; height: 100%; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 17px; }
.brand-text small { font-size: 12px; color: var(--muted); }
.site-nav { display: flex; gap: 26px; margin-left: auto; }
.site-nav a { font-size: 15px; font-weight: 500; color: var(--ink-soft); padding: 6px 2px; border-bottom: 2px solid transparent; }
.site-nav a:hover { border-bottom-color: var(--sky); color: var(--ink); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s, opacity .2s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; isolation: isolate; padding: 92px 0 64px; overflow: hidden;
  background: #edf9ff;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(90deg, rgba(247,252,255,.98) 0%, rgba(247,252,255,.94) 31%, rgba(241,250,255,.75) 52%, rgba(232,248,255,.28) 76%, rgba(232,248,255,.08) 100%),
    linear-gradient(180deg, rgba(237,249,255,.08) 0%, rgba(237,249,255,.02) 70%, rgba(237,249,255,.82) 100%),
    url("xyai-mascot-family-hero.jpg");
  background-size: 100% 100%, 100% 100%, cover;
  background-position: center, center, center;
  background-repeat: no-repeat;
  opacity: .98;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-light) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 76% 58% at 22% 8%, black, transparent 78%);
  mask-image: radial-gradient(ellipse 76% 58% at 22% 8%, black, transparent 78%);
  opacity: .22;
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-main { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 52px; align-items: center; }
.hero-copy { min-width: 0; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, 0.7); border: 1px solid var(--glass-border);
  color: var(--teal); font-size: 13px; font-weight: 700;
  padding: 6px 14px; border-radius: 999px; box-shadow: var(--shadow-soft);
}
.badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(17, 201, 36, 0.18); }
.hero h1 {
  margin: 22px 0 18px;
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.16; font-weight: 520; letter-spacing: -0.025em; color: var(--teal-deep);
}
.lang-switch { display: inline-flex; align-items: center; justify-content: center; min-width: 42px; height: 36px; padding: 0 11px; border: 1px solid rgba(16,79,75,.2); border-radius: 999px; color: var(--teal); font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: .04em; background: rgba(255,255,255,.7); }
.lang-switch:hover { border-color: var(--teal); background: #fff; }
.acid-mark { background: linear-gradient(180deg, transparent 66%, rgba(21, 158, 227, 0.2) 66%); padding: 0 6px; }
.hero-sub { max-width: 660px; color: var(--ink-soft); font-size: 17px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 40px; }
.brand-gloss { display: flex; flex-wrap: wrap; gap: 12px; }
.gloss-item {
  display: flex; align-items: center; gap: 10px;
  background: rgba(255, 255, 255, 0.6); border: 1px solid var(--glass-border);
  border-radius: 14px; padding: 9px 14px; box-shadow: var(--shadow-soft);
}
.gloss-item strong { font-size: 16px; color: var(--teal); min-width: 26px; }
.gloss-item span { display: flex; flex-direction: column; line-height: 1.25; font-size: 12.5px; color: var(--ink-soft); }
.gloss-item em { font-style: normal; font-size: 10px; letter-spacing: 1.2px; color: var(--muted); font-family: var(--mono); }
.hero-community {
  justify-self: end; width: 100%; padding: 24px;
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.92), rgba(231, 247, 255, 0.78));
  border: 1px solid var(--glass-border); border-radius: 24px;
  box-shadow: var(--shadow-card); text-align: center;
}
.community-label { display: block; margin-bottom: 14px; color: var(--teal); font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: 1.5px; }
.hero-community .community-qr { width: 196px; margin: 0 auto 15px; padding: 8px; }
.hero-community strong { display: block; margin-bottom: 6px; color: var(--teal-deep); font-size: 16px; }
.hero-community p { color: var(--muted); font-size: 12.5px; line-height: 1.6; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 54px; }
.stat {
  background: rgba(255, 255, 255, 0.66); border: 1px solid var(--glass-border);
  border-radius: 18px; padding: 18px 20px; box-shadow: var(--shadow-soft);
}
.stat strong { font-size: 34px; line-height: 1; color: var(--teal); display: block; margin-bottom: 6px; }
.stat span { font-size: 14px; font-weight: 600; display: block; }
.stat small { display: block; font-size: 12px; color: var(--muted); font-weight: 400; margin-top: 2px; }

/* ---------- 本地优先优势链 ---------- */
.local-advantage { padding: 82px 0; background: linear-gradient(135deg, #092a24 0%, #0f4e4a 56%, #176b67 100%); color: #fff; }
.advantage-layout { display: grid; grid-template-columns: .9fr 1.3fr; gap: 56px; align-items: start; }
.advantage-intro .kicker { color: #8edcff; }
.advantage-intro h2 { margin-bottom: 18px; font-size: clamp(30px, 3vw, 42px); line-height: 1.2; font-weight: 560; letter-spacing: -.02em; }
.advantage-intro > p { color: rgba(235, 249, 247, .8); font-size: 15px; }
.advantage-note { margin-top: 20px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.14); font-size: 12px !important; color: rgba(222, 242, 240, .62) !important; }
.advantage-flow { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.advantage-flow li { min-height: 176px; padding: 20px 18px; border: 1px solid rgba(255,255,255,.13); border-radius: 18px; background: rgba(255,255,255,.075); backdrop-filter: blur(8px); }
.advantage-flow li:nth-child(2), .advantage-flow li:nth-child(5) { background: rgba(21,158,227,.13); }
.advantage-flow li:nth-child(3), .advantage-flow li:nth-child(6) { background: rgba(255,100,93,.1); }
.advantage-flow li > span { display: block; margin-bottom: 16px; color: #8edcff; font-family: var(--mono); font-size: 12px; font-weight: 700; }
.advantage-flow strong { display: block; margin-bottom: 7px; font-size: 16px; }
.advantage-flow p { color: rgba(235,249,247,.68); font-size: 12.5px; line-height: 1.65; }

/* ---------- 通用 section ---------- */
.section { padding: 96px 0; }
.section-alt { background: linear-gradient(180deg, #e7f7ff 0%, rgba(247, 252, 255, 0.45) 100%); border-top: 1px solid rgba(21, 158, 227, 0.1); border-bottom: 1px solid rgba(21, 158, 227, 0.1); }
.kicker { font-family: var(--mono); font-size: 14px; font-weight: 700; letter-spacing: 1.4px; color: var(--teal); margin-bottom: 14px; }
.section h2 { font-size: clamp(30px, 4.4vw, 52px); line-height: 1.22; font-weight: 600; letter-spacing: -0.015em; margin-bottom: 14px; color: var(--teal-deep); }
.section-sub { color: var(--muted); max-width: 680px; margin-bottom: 44px; }

/* ---------- 功能卡 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card {
  background: rgba(255, 255, 255, 0.74); border: 1px solid var(--glass-border);
  border-radius: 18px; padding: 26px 24px; box-shadow: var(--shadow-soft);
  transition: transform .2s ease, box-shadow .2s ease;
}
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); }
.feature-ico { width: 46px; height: 46px; border-radius: 13px; background: var(--sky-soft); display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 16px; }
.feature-card:nth-child(3n+2) .feature-ico { background: rgba(255, 100, 93, 0.14); }
.feature-card:nth-child(3n) .feature-ico { background: rgba(101, 214, 107, 0.16); }
.feature-card h3 { font-size: 18px; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--ink-soft); }
.cap-status { display: inline-flex; margin: 0 0 10px; padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 700; }
.status-ready { color: #176b51; background: rgba(101, 214, 107, .16); }
.status-config { color: #1765bc; background: rgba(21, 158, 227, .14); }
.status-planned { color: #8b5a27; background: rgba(255, 194, 102, .2); }
.feature-animation { display: block; width: 100%; height: 650px; border: 0; border-radius: 22px; background: transparent; }

/* ---------- 工作区演示 ---------- */
.workspace-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 26px; align-items: start; }
.demo-window {
  background: #0e1b18; color: #e7f2ee; border-radius: 20px; overflow: hidden;
  box-shadow: var(--shadow-card); border: 1px solid rgba(255, 255, 255, 0.08);
}
.demo-titlebar { display: flex; align-items: center; gap: 7px; padding: 13px 16px; background: rgba(255, 255, 255, 0.05); }
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot-red { background: #ff5f57; } .dot-yellow { background: #febc2e; } .dot-green { background: #28c840; }
.demo-title { margin-left: 10px; font-size: 12.5px; color: #9db8ae; font-family: var(--mono); }
.demo-selectors { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px 16px 4px; }
.chip { font-size: 12px; padding: 5px 12px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.18); font-family: var(--mono); }
.chip-agent { background: rgba(45, 212, 191, 0.16); color: #7ff3e3; }
.chip-model { background: rgba(21, 158, 227, 0.15); color: #8edcff; }
.demo-body {
  height: 320px; overflow-y: auto; padding: 16px;
  display: flex; flex-direction: column; gap: 10px;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 100% 34px;
}
.msg { max-width: 88%; padding: 10px 14px; border-radius: 14px; font-size: 14px; line-height: 1.65; }
.msg.user { align-self: flex-end; background: linear-gradient(135deg, #ff645d, #ed252d); color: #fff; border-bottom-right-radius: 4px; }
.msg.agent { align-self: flex-start; background: rgba(255, 255, 255, 0.09); border: 1px solid rgba(255, 255, 255, 0.14); }
.msg.system { align-self: center; background: none; border: 0; color: #87a89b; font-family: var(--mono); font-size: 12px; padding: 2px 8px; }
.msg.approval { align-self: stretch; max-width: none; border: 1px solid rgba(237, 28, 36, 0.55); background: rgba(237, 28, 36, 0.12); }
.msg.approval.approved { border-color: rgba(17, 201, 36, 0.55); background: rgba(17, 201, 36, 0.1); }
.msg.approval.rejected { border-color: rgba(255, 255, 255, 0.3); background: rgba(255, 255, 255, 0.06); }
.msg.done { align-self: center; background: rgba(13, 148, 136, 0.18); color: #7ff3e3; font-family: var(--mono); font-size: 12px; padding: 6px 14px; border-radius: 999px; }
.approval-actions { display: flex; gap: 8px; margin-top: 10px; align-items: center; }
.approval-actions em { font-style: normal; font-size: 12.5px; color: #bfe9d9; }
.mini-btn { border-radius: 999px; padding: 5px 16px; font-size: 12.5px; border: 1px solid rgba(255, 255, 255, 0.28); background: rgba(255, 255, 255, 0.08); color: #fff; cursor: pointer; transition: background .15s; }
.mini-btn:hover { background: rgba(255, 255, 255, 0.18); }
.mini-btn.approve { background: var(--teal); border-color: transparent; font-weight: 700; }
.demo-input { display: flex; align-items: center; gap: 12px; padding: 13px 16px; border-top: 1px solid rgba(255, 255, 255, 0.09); }
.demo-placeholder { flex: 1; color: #7d958c; font-size: 13px; }
.demo-steps { list-style: none; counter-reset: step; display: flex; flex-direction: column; gap: 14px; }
.demo-steps li {
  counter-increment: step; position: relative; padding: 18px 20px 18px 58px;
  background: rgba(255, 255, 255, 0.72); border: 1px solid var(--glass-border);
  border-radius: 16px; box-shadow: var(--shadow-soft);
}
.demo-steps li::before {
  content: counter(step, decimal-leading-zero); position: absolute; left: 18px; top: 18px;
  font-family: var(--mono); font-weight: 700; color: var(--teal);
  width: 30px; height: 30px; border-radius: 9px; background: var(--sky-soft);
  display: flex; align-items: center; justify-content: center; font-size: 13px;
}
.demo-steps strong { display: block; margin-bottom: 4px; }
.demo-steps span { font-size: 13.5px; color: var(--muted); }

/* ---------- 翻翻 ---------- */
.mind-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 26px; align-items: start; }
.status-chip { display: inline-block; background: var(--sky-soft); color: #0f766e; border: 1px solid rgba(13, 148, 136, 0.28); padding: 5px 14px; border-radius: 999px; font-size: 12.5px; font-weight: 700; margin-bottom: 16px; }
.mind-copy p { color: var(--ink-soft); margin-bottom: 18px; }
.check-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.check-list li { position: relative; padding-left: 30px; font-size: 14.5px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 21px; height: 21px; border-radius: 7px; background: var(--sky-soft); color: var(--teal); font-weight: 800; font-size: 12px; display: flex; align-items: center; justify-content: center; }
.waitlist-card {
  background: rgba(255, 255, 255, 0.8); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 28px 26px; box-shadow: var(--shadow-card);
}
.waitlist-card h3 { font-size: 19px; margin-bottom: 6px; }
.waitlist-card > p { font-size: 13.5px; color: var(--muted); margin-bottom: 18px; }
.waitlist-card label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.waitlist-card input, .waitlist-card textarea {
  width: 100%; margin-top: 6px; padding: 11px 13px; font-size: 14px;
  border: 1px solid var(--line-light); border-radius: 12px; background: #fff;
  font-family: inherit; color: var(--ink); outline: none; transition: border-color .15s, box-shadow .15s; resize: vertical;
}
.waitlist-card input:focus, .waitlist-card textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15); }
.waitlist-card .form-honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; opacity: 0 !important; pointer-events: none !important; }
.waitlist-card .consent-field { display: flex; align-items: flex-start; gap: 9px; color: var(--muted); font-weight: 400; line-height: 1.5; }
.waitlist-card .consent-field input { flex: 0 0 auto; width: 16px; height: 16px; margin: 2px 0 0; padding: 0; accent-color: var(--teal); }
.waitlist-card button:disabled { cursor: wait; opacity: .65; }
.form-tip { margin-top: 12px; font-size: 13px; color: var(--teal); font-weight: 600; min-height: 20px; }

/* ---------- 智能体 tabs ---------- */
.agent-layout { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(300px, .72fr); gap: 28px; align-items: start; }
.agent-content { min-width: 0; }
.freework-waitlist { position: sticky; top: 92px; border-color: rgba(21, 158, 227, .24); }
.freework-waitlist .community-label { margin-bottom: 10px; }
.tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.tab {
  padding: 10px 20px; border-radius: 999px; border: 1px solid var(--line-light);
  background: rgba(255, 255, 255, 0.62); font-size: 14.5px; font-weight: 600;
  color: var(--ink-soft); cursor: pointer; transition: all .18s ease; font-family: inherit;
}
.tab:hover { background: rgba(255, 255, 255, 0.95); }
.tab.active { background: linear-gradient(135deg, #0678cd, #15b8c6); border-color: transparent; color: #fff; font-weight: 700; box-shadow: 0 8px 22px rgba(6, 120, 205, 0.28); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp .32s ease; }
.tab-panel h3 { font-size: 20px; margin-bottom: 8px; }
.tab-panel > p { color: var(--muted); margin-bottom: 22px; max-width: 680px; }
.mini-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.mini-card {
  background: rgba(255, 255, 255, 0.72); border: 1px solid var(--glass-border);
  border-radius: 15px; padding: 18px; box-shadow: var(--shadow-soft);
}
.mini-card strong { display: block; font-size: 15px; margin-bottom: 5px; }
.mini-card span { font-size: 12.5px; color: var(--muted); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ---------- 下载 ---------- */
.download-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 26px; align-items: start; }
.download-card {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.94), rgba(231, 247, 255, 0.82));
  border: 1px solid var(--glass-border); border-radius: var(--radius);
  padding: 36px 34px; box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; align-items: flex-start; gap: 18px;
}
.download-card, .download-side { min-width: 0; }
.dl-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 12px; }
.dl-head strong { font-size: 22px; }
.ver { font-family: var(--mono); font-size: 12.5px; color: var(--teal); background: var(--sky-soft); padding: 4px 12px; border-radius: 999px; font-weight: 700; }
.download-actions { width: 100%; display: grid; grid-template-columns: minmax(0, 1fr) 54px; gap: 10px; }
.download-actions .download-primary { min-width: 0; white-space: normal; text-align: center; line-height: 1.35; }
.download-actions .download-option { grid-column: 1 / -1; width: 100%; white-space: normal; text-align: center; line-height: 1.35; }
.github-icon-btn { width: 54px; min-width: 54px; display: inline-flex; align-items: center; justify-content: center; color: var(--ink); background: rgba(255, 255, 255, .82); border: 1px solid var(--glass-border); border-radius: 14px; box-shadow: 0 10px 24px rgba(8, 65, 79, .1); transition: .2s ease; }
.github-icon-btn svg { width: 25px; height: 25px; }
.github-icon-btn:hover { color: #fff; background: var(--ink); border-color: var(--ink); transform: translateY(-2px); }
.github-icon-btn:focus-visible { outline: 3px solid rgba(0, 167, 216, .3); outline-offset: 3px; }
.dl-note { font-size: 13px; color: var(--muted); }
.release-hash { width: 100%; padding: 12px 14px; border-radius: 12px; background: rgba(231, 247, 255, .72); color: var(--ink-soft); font-size: 12px; }
.release-hash strong { display: block; margin-bottom: 4px; color: var(--teal); }
.release-hash code { overflow-wrap: anywhere; font-family: var(--mono); }
.roadmap-v03 { max-width: 900px; }
.req-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 20px; width: 100%; border-top: 1px dashed var(--line-light); padding-top: 18px; }
.req-list li { font-size: 13.5px; color: var(--ink-soft); padding-left: 18px; position: relative; }
.req-list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 7px; height: 7px; border-radius: 2px; background: var(--sky); }
.download-side { background: rgba(255, 255, 255, 0.72); border: 1px solid var(--glass-border); border-radius: var(--radius); padding: 30px 28px; box-shadow: var(--shadow-soft); }
.download-side h3 { font-size: 19px; margin-bottom: 14px; }
.step-list { padding-left: 20px; display: flex; flex-direction: column; gap: 10px; margin-bottom: 18px; }
.step-list li { font-size: 14px; color: var(--ink-soft); }
.tip { font-size: 12.5px; color: var(--muted); background: var(--paper-soft); border-radius: 10px; padding: 10px 12px; }

/* ---------- 路线图 ---------- */
.roadmap-list { list-style: none; position: relative; padding-left: 30px; max-width: 760px; }
.roadmap-list::before { content: ""; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--sky), var(--orange)); border-radius: 2px; }
.roadmap-list li { position: relative; padding: 0 0 26px 14px; }
.roadmap-list li:last-child { padding-bottom: 0; }
.roadmap-list li::before {
  content: ""; position: absolute; left: -28px; top: 6px; width: 14px; height: 14px;
  border-radius: 50%; background: #fff; border: 3px solid var(--paper-soft);
}
.roadmap-list li.done::before { background: var(--teal); border-color: var(--sky-soft); }
.roadmap-list li.doing::before { background: var(--orange); border-color: rgba(255, 100, 93, 0.28); box-shadow: 0 0 0 6px rgba(255, 100, 93, 0.16); }
.roadmap-list strong { font-size: 16.5px; display: inline-block; margin-right: 10px; }
.roadmap-list li.done strong::after { content: "✓ 已完成"; font-size: 11px; color: #0f766e; background: var(--sky-soft); border-radius: 999px; padding: 2px 9px; margin-left: 10px; vertical-align: 2px; font-weight: 700; }
.roadmap-list li.doing strong::after { content: "● 进行中"; font-size: 11px; color: #b5282e; background: rgba(255, 100, 93, 0.15); border-radius: 999px; padding: 2px 9px; margin-left: 10px; vertical-align: 2px; font-weight: 700; }
.roadmap-list span { display: block; color: var(--muted); font-size: 14px; }

/* ---------- 页脚 ---------- */
.site-footer { background: linear-gradient(180deg, #e7f7ff 0%, #f7fcff 58%, #fff 100%); color: #21475f; padding: 56px 0 0; margin-top: 20px; border-top: 1px solid rgba(117, 173, 204, 0.2); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px; padding-bottom: 40px; align-items: start; }
.footer-brand strong { font-size: 20px; color: var(--teal-deep); display: block; margin-bottom: 10px; }
.footer-brand p { font-size: 14px; color: #56758a; max-width: 340px; }
.footer-col h4 { font-size: 14px; color: var(--teal); margin-bottom: 12px; letter-spacing: 1px; }
.footer-col a { display: block; font-size: 14px; color: #315f79; padding: 5px 0; opacity: .88; }
.footer-col a:hover { color: var(--sky-strong); opacity: 1; }
.community-qr { width: 156px; padding: 8px; margin-bottom: 10px; border-radius: 16px; background: #fff; border: 1px solid rgba(117, 173, 204, 0.24); box-shadow: 0 12px 30px rgba(39, 105, 153, 0.12); }
.community-qr img { width: 100%; height: auto; border-radius: 9px; }
.footer-bottom { border-top: 1px solid rgba(72, 124, 151, 0.14); padding: 18px 24px; text-align: center; font-size: 12.5px; color: #668496; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 16px; }
.beian-link { color: #56758a; }
.beian-link:hover { color: var(--sky-strong); }

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .hero::before {
    background-image:
      linear-gradient(90deg, rgba(247,252,255,.98) 0%, rgba(247,252,255,.94) 38%, rgba(241,250,255,.70) 62%, rgba(232,248,255,.22) 100%),
      linear-gradient(180deg, rgba(237,249,255,.06) 0%, rgba(237,249,255,.05) 67%, rgba(237,249,255,.88) 100%),
      url("xyai-mascot-family-hero.jpg");
    background-position: center, center, 58% center;
  }  .advantage-layout { grid-template-columns: 1fr; gap: 32px; }
  .advantage-flow { grid-template-columns: repeat(3, 1fr); }
  .hero-main { grid-template-columns: minmax(0, 1fr) 240px; gap: 28px; }
  .hero-community { padding: 20px; }
  .hero-community .community-qr { width: 172px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .mini-cards { grid-template-columns: repeat(2, 1fr); }
  .workspace-grid, .mind-grid, .download-grid, .agent-layout { grid-template-columns: 1fr; }
  .freework-waitlist { position: static; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .site-nav {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; gap: 4px; padding: 14px 24px 20px;
    background: rgba(244, 251, 255, 0.97); border-bottom: 1px solid var(--line-light);
    box-shadow: 0 18px 34px rgba(39, 105, 153, 0.14);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 9px 2px; border-bottom: 0; }
  .nav-toggle { display: flex; }
  .header-actions .btn-primary { display: none; }
}
@media (max-width: 620px) {
  .section { padding: 68px 0; }
  .hero { padding: 64px 0 48px; }
  .hero::before {
    background-image:
      linear-gradient(180deg, rgba(247,252,255,.99) 0%, rgba(247,252,255,.96) 32%, rgba(241,250,255,.76) 48%, rgba(234,248,255,.30) 64%, rgba(237,249,255,.86) 100%),
      url("xyai-mascot-family-hero.jpg");
    background-size: 100% 100%, 145% auto;
    background-position: center, center 43%;
    background-repeat: no-repeat;
  }  .feature-grid, .mini-cards, .hero-stats, .req-list, .footer-grid { grid-template-columns: 1fr; }
  .hero-main { grid-template-columns: 1fr; gap: 28px; }
  .hero-community { justify-self: stretch; max-width: 360px; margin: 0 auto; }
  .hero-community .community-qr { width: 196px; }
  .feature-animation { height: 930px; }
  .local-advantage { padding: 64px 0; }
  .advantage-flow { grid-template-columns: 1fr; }
  .advantage-flow li { min-height: 0; }
  .hero-cta .btn { width: 100%; }
  .download-card { padding: 28px 22px; }
  .download-actions .btn { min-width: 0; white-space: normal; text-align: center; line-height: 1.35; }
  .release-hash code { word-break: break-all; }
  .brand-gloss { gap: 8px; }
  .gloss-item { flex: 1 1 45%; }
  .demo-input { flex-direction: column; align-items: stretch; }
  .demo-placeholder { display: none; }
}