:root {
  color-scheme: dark;
  --bg: #0a0a0c;
  --bg-raise: #111114;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-strong: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #f4f1ec;
  --text-2: rgba(244, 241, 236, 0.68);
  --text-3: rgba(244, 241, 236, 0.44);
  --warm: #ffd8a8;
  --warm-2: #f6a96b;
  --cool: #a5b4fc;
  --mint: #8ee3c8;
  --radius-s: 10px;
  --radius-m: 16px;
  --radius-l: 24px;
  --shadow-l: 0 40px 120px -30px rgba(0, 0, 0, 0.8), 0 0 0 1px var(--line);
  --font: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei UI", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: "SF Mono", ui-monospace, "Cascadia Code", Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
code { font-family: var(--mono); font-size: 0.88em; padding: 1px 6px; border-radius: 6px; background: var(--surface-strong); }
:focus-visible { outline: 2px solid var(--warm); outline-offset: 3px; border-radius: 6px; }
::selection { background: rgba(255, 216, 168, 0.3); }

.container { width: min(1160px, 100% - 32px); margin-inline: auto; }

/* 背景光晕 */
.aurora { position: fixed; inset: 0; z-index: -2; overflow: hidden; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.5; will-change: transform; }
.orb-a { width: 620px; height: 620px; left: -160px; top: -220px; background: radial-gradient(circle, rgba(246, 169, 107, 0.55), transparent 65%); animation: drift-a 26s var(--ease) infinite alternate; }
.orb-b { width: 680px; height: 680px; right: -220px; top: 80px; background: radial-gradient(circle, rgba(129, 140, 248, 0.45), transparent 65%); animation: drift-b 32s var(--ease) infinite alternate; }
.orb-c { width: 520px; height: 520px; left: 30%; top: 520px; background: radial-gradient(circle, rgba(142, 227, 200, 0.22), transparent 65%); animation: drift-a 38s var(--ease) infinite alternate-reverse; }
@keyframes drift-a { to { transform: translate3d(120px, 80px, 0) scale(1.1); } }
@keyframes drift-b { to { transform: translate3d(-140px, 60px, 0) scale(0.92); } }
.grain {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.06; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* 导航 */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s; border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(10, 10, 12, 0.72); backdrop-filter: saturate(160%) blur(18px); -webkit-backdrop-filter: saturate(160%) blur(18px); border-color: var(--line); }
.nav-inner { width: min(1160px, 100% - 32px); margin-inline: auto; height: 64px; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: 0.08em; }
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a { padding: 6px 14px; border-radius: 999px; color: var(--text-2); font-size: 14px; transition: color 0.2s, background 0.2s; }
.nav-links a:hover { color: var(--text); background: var(--surface-strong); }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 48px; padding: 0 24px; border-radius: 999px; font-size: 15px; font-weight: 500; white-space: nowrap; transition: transform 0.25s var(--ease), box-shadow 0.25s, background 0.2s, border-color 0.2s; cursor: pointer; border: 0; font-family: inherit; }
.btn:active { transform: scale(0.98); }
.btn-primary { color: #1a1206; background: linear-gradient(180deg, #fff3e2, var(--warm)); box-shadow: 0 0 0 1px rgba(255, 216, 168, 0.5), 0 12px 40px -10px rgba(246, 169, 107, 0.7); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 0 0 1px rgba(255, 216, 168, 0.7), 0 18px 50px -10px rgba(246, 169, 107, 0.85); }
.btn-ghost { color: var(--text); background: var(--surface); box-shadow: inset 0 0 0 1px var(--line-strong); }
.btn-ghost:hover { background: var(--surface-strong); }
.btn-light { color: #111; background: var(--text); }
.btn-light:hover { background: #fff; }
.btn-small { height: 34px; padding: 0 16px; font-size: 13px; }
.btn[aria-disabled="true"] { pointer-events: none; color: var(--text-3); background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); }
.os-icon { width: 18px; height: 18px; fill: currentColor; }
.os-icon:empty { display: none; }

/* 首屏 */
.hero { padding-top: 148px; position: relative; }
.hero-copy { text-align: center; display: flex; flex-direction: column; align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 10px; padding: 6px 14px 6px 10px; border-radius: 999px; font-size: 13px; color: var(--text-2); background: var(--surface); box-shadow: inset 0 0 0 1px var(--line-strong); transition: background 0.2s, color 0.2s; }
.pill:hover { color: var(--text); background: var(--surface-strong); }
.pill-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 4px rgba(142, 227, 200, 0.16); }
.pill-arrow { color: var(--text-3); }
h1 { margin-top: 28px; font-size: clamp(42px, 7.2vw, 88px); line-height: 1.08; font-weight: 650; letter-spacing: -0.02em; }
.br-mobile { display: none; }
.shine { background: linear-gradient(100deg, var(--warm) 0%, #fff6ea 30%, var(--cool) 70%, var(--warm) 100%); background-size: 220% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: shine 9s linear infinite; }
@keyframes shine { to { background-position: -220% 0; } }
.lead { margin-top: 24px; max-width: 640px; font-size: clamp(16px, 1.6vw, 19px); color: var(--text-2); }
.hero-actions { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.hero-meta { margin-top: 16px; font-size: 13px; color: var(--text-3); }

/* 产品示意 */
.stage { width: min(1180px, 100% - 32px); margin: 72px auto 0; perspective: 2000px; }
.window { border-radius: 18px; background: linear-gradient(180deg, #17171b, #101013); box-shadow: var(--shadow-l), 0 0 120px -40px rgba(246, 169, 107, 0.35); overflow: hidden; transform: rotateX(8deg) scale(0.98); transform-origin: 50% 0; transition: transform 1.2s var(--ease); }
.stage.in .window { transform: none; }
.win-bar { height: 40px; display: flex; align-items: center; gap: 18px; padding: 0 14px; border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, 0.02); }
.lights { display: flex; gap: 8px; }
.lights i { width: 12px; height: 12px; border-radius: 50%; background: #ff5f57; }
.lights i:nth-child(2) { background: #febc2e; }
.lights i:nth-child(3) { background: #28c840; }
.tabs { display: flex; gap: 4px; font-size: 12px; color: var(--text-3); min-width: 0; overflow: hidden; }
.tab { padding: 4px 12px; border-radius: 8px; white-space: nowrap; }
.tab.active { color: var(--text); background: var(--surface-strong); }
.tab.add { padding-inline: 8px; }
.win-body { display: grid; grid-template-columns: 52px 1fr 280px; height: 520px; }
.rail { border-right: 1px solid var(--line); display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 14px 0; }
.rail i { width: 28px; height: 28px; border-radius: 8px; background: var(--surface-strong); }
.rail i.r-logo { background: url(/assets/logo.svg) center / 18px no-repeat, #26262b; margin-bottom: 8px; }
.rail i.on { background: rgba(255, 216, 168, 0.18); box-shadow: inset 0 0 0 1px rgba(255, 216, 168, 0.4); }
.rail i.r-bottom { margin-top: auto; border-radius: 50%; background: linear-gradient(135deg, var(--warm-2), var(--cool)); }

.canvas { position: relative; overflow: hidden; background-color: #0e0e11; background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px); background-size: 22px 22px; }
.canvas-inner { position: absolute; inset: 0; transform-origin: 0 0; }
.wires { position: absolute; left: 0; top: 0; width: 790px; height: 480px; }
.wire { fill: none; stroke: url(#wire); stroke-width: 1.6; stroke-dasharray: 6 6; animation: flow 1.6s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -24; } }
.node { position: absolute; left: var(--x); top: var(--y); width: 196px; padding: 10px; border-radius: 14px; background: rgba(26, 26, 31, 0.92); box-shadow: 0 0 0 1px var(--line-strong), 0 16px 40px -16px rgba(0, 0, 0, 0.9); font-size: 12px; }
.n-head { display: flex; align-items: center; gap: 8px; color: var(--text-2); margin-bottom: 8px; font-size: 11.5px; }
.n-head em { margin-left: auto; font-style: normal; font-family: var(--mono); font-size: 10px; color: var(--text-3); padding: 1px 6px; border-radius: 6px; background: var(--surface-strong); }
.n-ico { width: 16px; height: 16px; border-radius: 5px; display: inline-grid; place-items: center; font-size: 10px; font-weight: 700; color: #111; }
.n-ico.t { background: #e7e5e4; }
.n-ico.c { background: var(--warm); }
.n-ico.i { background: var(--cool); }
.n-ico.v { background: #f9a8d4; }
.n-ico.a { background: var(--mint); }
.n-text { color: var(--text-2); line-height: 1.65; font-size: 11.5px; }
.n-text b { display: block; color: var(--text); font-weight: 600; margin-bottom: 4px; }
.n-img, .n-video { width: 200px; }
.frame { position: relative; aspect-ratio: 16 / 9; border-radius: 9px; overflow: hidden; background: #000; }
.frame.tall { aspect-ratio: 4 / 5; }
.frame img { width: 100%; height: 100%; object-fit: cover; }
.gen { position: absolute; left: 8px; bottom: 8px; display: flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; font-size: 10.5px; background: rgba(0, 0, 0, 0.6); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.gen i { width: 8px; height: 8px; border-radius: 50%; border: 1.5px solid var(--warm); border-top-color: transparent; animation: spin 0.9s linear infinite; }
.frame:has(.gen)::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, 0.14) 50%, transparent 70%); background-size: 250% 100%; animation: sweep 2.4s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes sweep { from { background-position: 150% 0; } to { background-position: -100% 0; } }
.play { position: absolute; inset: 0; margin: auto; width: 40px; height: 40px; border-radius: 50%; background: rgba(0, 0, 0, 0.45); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.3); }
.play::after { content: ""; position: absolute; left: 16px; top: 13px; border-left: 11px solid #fff; border-top: 7px solid transparent; border-bottom: 7px solid transparent; }
.scrub { position: absolute; left: 10px; right: 10px; bottom: 10px; height: 3px; border-radius: 3px; background: rgba(255, 255, 255, 0.25); }
.scrub i { display: block; height: 100%; width: 38%; border-radius: inherit; background: #fff; animation: scrub 5s linear infinite; }
@keyframes scrub { from { width: 0; } to { width: 100%; } }
.char-row { display: flex; gap: 10px; align-items: center; }
.char-row img { width: 56px; height: 72px; object-fit: cover; border-radius: 8px; }
.char-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.char-tags span { padding: 2px 8px; border-radius: 999px; font-size: 10.5px; color: var(--text-2); background: var(--surface-strong); }
.n-audio { width: 200px; }
.wave { height: 34px; border-radius: 8px; background: rgba(142, 227, 200, 0.08); -webkit-mask: repeating-linear-gradient(90deg, #000 0 2px, transparent 2px 5px); mask: repeating-linear-gradient(90deg, #000 0 2px, transparent 2px 5px); position: relative; overflow: hidden; }
.wave::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--mint), var(--cool)); clip-path: polygon(0 45%, 4% 30%, 8% 55%, 12% 20%, 16% 60%, 20% 10%, 24% 50%, 28% 35%, 32% 70%, 36% 15%, 40% 45%, 44% 25%, 48% 65%, 52% 30%, 56% 55%, 60% 12%, 64% 50%, 68% 38%, 72% 62%, 76% 22%, 80% 48%, 84% 30%, 88% 58%, 92% 40%, 96% 52%, 100% 45%, 100% 55%, 96% 48%, 92% 60%, 88% 42%, 84% 70%, 80% 52%, 76% 78%, 72% 38%, 68% 62%, 64% 50%, 60% 88%, 56% 45%, 52% 70%, 48% 35%, 44% 75%, 40% 55%, 36% 85%, 32% 30%, 28% 65%, 24% 50%, 20% 90%, 16% 40%, 12% 80%, 8% 45%, 4% 70%, 0 55%); }
.dock { position: absolute; left: 50%; bottom: 16px; transform: translateX(-50%); display: flex; align-items: center; gap: 8px; padding: 7px 10px; border-radius: 14px; background: rgba(24, 24, 28, 0.9); box-shadow: 0 0 0 1px var(--line-strong), 0 12px 30px -10px #000; }
.dock i { width: 26px; height: 26px; border-radius: 8px; background: var(--surface-strong); }
.dock i.on { background: var(--text); }
.dock .sep { width: 1px; height: 18px; background: var(--line-strong); }
.dock .plus { width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; color: #111; background: var(--warm); font-size: 16px; line-height: 1; }

.agent { border-left: 1px solid var(--line); padding: 14px; display: flex; flex-direction: column; gap: 12px; font-size: 12.5px; background: rgba(255, 255, 255, 0.015); }
.a-head { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.a-avatar { width: 22px; height: 22px; border-radius: 50%; background: conic-gradient(from 200deg, var(--warm), var(--cool), var(--mint), var(--warm)); }
.a-msg { padding: 10px 12px; border-radius: 12px; line-height: 1.65; color: var(--text-2); }
.a-msg.me { align-self: flex-end; max-width: 90%; color: var(--text); background: rgba(255, 216, 168, 0.12); border-bottom-right-radius: 4px; }
.a-msg.bot { background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); border-bottom-left-radius: 4px; }
.a-tools { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
.a-tools span { display: flex; align-items: center; gap: 8px; font-size: 11.5px; color: var(--text-2); }
.a-tools span::before { content: ""; width: 14px; height: 14px; border-radius: 50%; flex: none; }
.a-tools .done::before { background: rgba(142, 227, 200, 0.2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Cpath d='M4 7.2l2 2 4-4.4' fill='none' stroke='%238ee3c8' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 14px; }
.a-tools .run::before { border: 1.5px solid var(--warm); border-top-color: transparent; animation: spin 0.9s linear infinite; }
.a-input { margin-top: auto; display: flex; align-items: center; justify-content: space-between; padding: 10px 10px 10px 12px; border-radius: 12px; color: var(--text-3); background: var(--surface); box-shadow: inset 0 0 0 1px var(--line-strong); }
.a-input i { width: 26px; height: 26px; border-radius: 8px; background: var(--text); }

/* 通用分区 */
.section { padding: 140px 0 0; scroll-margin-top: 40px; }
.section-head { text-align: center; max-width: 660px; margin: 0 auto 56px; }
.eyebrow { display: inline-block; font-size: 13px; letter-spacing: 0.2em; color: var(--warm); margin-bottom: 14px; }
h2 { font-size: clamp(30px, 4.4vw, 52px); line-height: 1.15; font-weight: 650; letter-spacing: -0.01em; }
.section-head p { margin-top: 18px; color: var(--text-2); font-size: 17px; }
h3 { font-size: 19px; font-weight: 600; line-height: 1.4; }

/* 流程 */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; counter-reset: step; }
.step { position: relative; padding: 26px 22px 28px; border-radius: var(--radius-m); background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); transition: background 0.3s, transform 0.4s var(--ease); }
.step:hover { background: var(--surface-strong); transform: translateY(-3px); }
.step .num { display: block; font-family: var(--mono); font-size: 13px; color: var(--text-3); margin-bottom: 36px; }
.step h3 { margin-bottom: 8px; }
.step p { color: var(--text-2); font-size: 14.5px; }
.step:not(:last-child)::after { content: ""; position: absolute; top: 34px; right: -12px; width: 12px; height: 1px; background: linear-gradient(90deg, var(--line-strong), transparent); }

/* 能力格 */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { position: relative; padding: 30px; border-radius: var(--radius-l); background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)); box-shadow: inset 0 0 0 1px var(--line); overflow: hidden; isolation: isolate; }
.card::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), rgba(255, 216, 168, 0.1), transparent 60%); opacity: 0; transition: opacity 0.3s; }
.card:hover::before { opacity: 1; }
.card p { margin-top: 10px; color: var(--text-2); font-size: 15px; }
.c-wide { grid-column: span 2; display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 24px; align-items: center; min-height: 300px; }
.c-tall { grid-row: span 3; display: flex; flex-direction: column; }
.icon-badge { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 22px; background: var(--surface-strong); box-shadow: inset 0 0 0 1px var(--line-strong); }
.icon-badge svg { width: 22px; height: 22px; fill: none; stroke: var(--warm); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.mini-canvas { position: relative; height: 240px; border-radius: 16px; background-color: #0e0e11; background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px); background-size: 18px 18px; box-shadow: inset 0 0 0 1px var(--line); }
.mini-canvas svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.mini-canvas path { fill: none; stroke: rgba(255, 216, 168, 0.55); stroke-width: 1.4; stroke-dasharray: 5 5; animation: flow 1.6s linear infinite; }
.mc { position: absolute; z-index: 1; padding: 5px; border-radius: 11px; background: #1b1b20; box-shadow: 0 0 0 1px var(--line-strong), 0 14px 30px -12px #000; transition: transform 0.6s var(--ease); }
.mc img { border-radius: 7px; object-fit: cover; width: 100%; height: 100%; }
.mc1 { left: 6%; top: 14%; width: 26%; height: 36%; }
.mc2 { left: 50%; top: 8%; width: 26%; height: 28%; }
.mc3 { left: 53%; top: 56%; width: 22%; height: 36%; }
.mc4 { left: 84%; top: 44%; width: 13%; height: 26%; }
.c-wide:hover .mc1 { transform: translate(-4px, -4px); }
.c-wide:hover .mc2 { transform: translate(4px, -6px); }
.c-wide:hover .mc3 { transform: translate(6px, 4px); }
.chat-mini { list-style: none; margin: auto 0 0; padding: 28px 0 0; display: flex; flex-direction: column; gap: 10px; font-size: 13.5px; }
.chat-mini li { padding: 12px 14px; border-radius: 14px; }
.chat-mini .me { align-self: flex-end; max-width: 92%; background: rgba(255, 216, 168, 0.12); border-bottom-right-radius: 4px; }
.chat-mini .bot { display: flex; flex-direction: column; gap: 8px; background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); border-bottom-left-radius: 4px; }
.chip { display: flex; align-items: center; gap: 8px; color: var(--text-2); font-size: 12.5px; }
.chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--cool); }
.chip.ok { color: var(--mint); }
.chip.ok::before { background: var(--mint); }
.chip.run { color: var(--warm); }
.chip.run::before { width: 8px; height: 8px; background: none; border: 1.5px solid var(--warm); border-top-color: transparent; animation: spin 0.9s linear infinite; }

/* 画风条带 */
.styles-band { padding-top: 140px; }
.marquee { overflow: hidden; -webkit-mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track { display: flex; gap: 16px; width: max-content; animation: marquee 60s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.shot { position: relative; width: 300px; aspect-ratio: 3 / 2; border-radius: 18px; overflow: hidden; flex: none; box-shadow: 0 0 0 1px var(--line); }
.shot img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.shot:hover img { transform: scale(1.06); }
.shot span { position: absolute; left: 14px; bottom: 12px; font-size: 13px; padding: 4px 12px; border-radius: 999px; background: rgba(0, 0, 0, 0.45); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }

/* 本地优先 */
.local { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.local-copy p { margin-top: 20px; color: var(--text-2); font-size: 17px; }
.local-copy .eyebrow { margin-bottom: 14px; }
.checks { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 12px; }
.checks li { display: flex; gap: 12px; color: var(--text); font-size: 15px; }
.checks li::before { content: ""; flex: none; width: 20px; height: 20px; margin-top: 3px; border-radius: 50%; background: rgba(142, 227, 200, 0.14) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M6 10.3l2.6 2.6L14 7.4' fill='none' stroke='%238ee3c8' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 20px; }
.local-visual { position: relative; aspect-ratio: 1; max-width: 460px; width: 100%; justify-self: center; }
.lv-ring { position: absolute; inset: 0; margin: auto; border-radius: 50%; border: 1px dashed var(--line-strong); }
.lv-ring.r1 { width: 62%; height: 62%; animation: spin 60s linear infinite; }
.lv-ring.r2 { width: 96%; height: 96%; border-style: solid; border-color: var(--line); }
.lv-core { position: absolute; inset: 0; margin: auto; width: 34%; height: 34%; border-radius: 28%; display: grid; place-content: center; justify-items: center; gap: 8px; background: linear-gradient(160deg, #2a2d34, #111214); box-shadow: 0 0 0 1px var(--line-strong), 0 30px 80px -20px rgba(246, 169, 107, 0.45); font-size: 13px; color: var(--text-2); }
.lv-core img { width: 42px; }
.lv-tag { position: absolute; padding: 6px 14px; border-radius: 999px; font-size: 13px; background: #17171b; box-shadow: 0 0 0 1px var(--line-strong); }
.lv-tag.t1 { left: 50%; top: 16%; transform: translateX(-50%); }
.lv-tag.t2 { right: 13%; top: 50%; transform: translateY(-50%); }
.lv-tag.t3 { left: 50%; bottom: 16%; transform: translateX(-50%); }
.lv-tag.t4 { left: 13%; top: 50%; transform: translateY(-50%); }
.lv-cloud { position: absolute; right: 0; top: 0; padding: 6px 14px; border-radius: 999px; font-size: 12px; color: var(--text-3); box-shadow: inset 0 0 0 1px var(--line); }

/* 下载 */
.downloads { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; max-width: 1080px; margin: 0 auto; }
.dl { position: relative; padding: 32px; border-radius: var(--radius-l); background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)); box-shadow: inset 0 0 0 1px var(--line); display: flex; flex-direction: column; gap: 20px; }
.dl.current { box-shadow: inset 0 0 0 1px rgba(255, 216, 168, 0.35), 0 30px 80px -40px rgba(246, 169, 107, 0.6); }
.dl-top { display: flex; align-items: center; gap: 14px; }
.dl-logo { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; background: var(--surface-strong); box-shadow: inset 0 0 0 1px var(--line-strong); }
.dl-logo svg { width: 24px; height: 24px; fill: var(--text); }
.dl-name { font-size: 20px; font-weight: 600; }
.dl-arch { font-size: 13px; color: var(--text-3); }
.dl-badge { margin-left: auto; font-size: 12px; padding: 3px 10px; border-radius: 999px; color: var(--warm); background: rgba(255, 216, 168, 0.1); }
.dl-meta { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; font-size: 13.5px; color: var(--text-2); margin: 0; }
.dl-meta dt { color: var(--text-3); }
.dl-meta dd { margin: 0; min-width: 0; }
.hash { display: flex; align-items: center; gap: 8px; }
.hash code { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; padding: 0; background: none; color: var(--text-3); font-size: 12px; }
.copy { flex: none; font: inherit; font-size: 12px; color: var(--text-2); background: var(--surface-strong); border: 0; border-radius: 6px; padding: 2px 8px; cursor: pointer; }
.copy:hover { color: var(--text); }
.dl .btn { width: 100%; margin-top: auto; }
.install-notes { max-width: 920px; margin: 32px auto 0; display: grid; gap: 8px; }
.notes { max-width: 920px; margin: 24px auto 0; padding: 24px 28px; border-radius: var(--radius-m); background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); }
.notes h3 { font-size: 15px; margin-bottom: 10px; }
.notes ul { margin: 0; padding-left: 20px; color: var(--text-2); font-size: 14.5px; }

/* 折叠 */
details { border-radius: 14px; background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); transition: background 0.2s; }
details[open] { background: var(--surface-strong); }
summary { list-style: none; cursor: pointer; padding: 18px 22px; font-size: 15.5px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: ""; flex: none; width: 10px; height: 10px; border-right: 1.5px solid var(--text-3); border-bottom: 1.5px solid var(--text-3); transform: rotate(45deg) translateY(-3px); transition: transform 0.3s var(--ease); }
details[open] summary::after { transform: rotate(225deg) translateY(-2px); }
details p { padding: 0 22px 20px; color: var(--text-2); font-size: 15px; }
.faq { max-width: 820px; }
.faq-list { display: grid; gap: 10px; }

/* 结尾 */
.cta { padding: 160px 0 120px; }
.cta-inner { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 36px; }
.cta h2 { font-size: clamp(36px, 6vw, 72px); }
.footer { border-top: 1px solid var(--line); padding: 32px 0 calc(32px + env(safe-area-inset-bottom)); font-size: 13px; color: var(--text-2); }
.footer-inner { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.footer .brand { font-size: 14px; }
.footer .muted { margin-left: auto; color: var(--text-3); }

/* 入场动画 */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* 响应式 */
@media (max-width: 1080px) {
  .win-body { grid-template-columns: 52px 1fr; }
  .agent { display: none; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .step:not(:last-child)::after { display: none; }
}
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-inner .btn { margin-left: auto; }
  .bento { grid-template-columns: 1fr 1fr; }
  .c-wide { grid-column: span 2; grid-template-columns: 1fr; }
  .c-tall { grid-row: auto; grid-column: span 2; }
  .local { grid-template-columns: 1fr; gap: 48px; }
  .downloads { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero { padding-top: 120px; }
  .br-mobile { display: inline; }
  .hero-actions .btn { width: 100%; }
  .hero-actions { width: 100%; flex-direction: column; }
  .win-body { height: 290px; grid-template-columns: 1fr; }
  .dock { transform: translateX(-50%) scale(0.75); transform-origin: 50% 100%; bottom: 10px; }
  .rail { display: none; }
  .win-bar .tab:not(.active) { display: none; }
  .steps { grid-template-columns: 1fr; }
  .step .num { margin-bottom: 16px; }
  .bento { grid-template-columns: 1fr; }
  .c-wide, .c-tall { grid-column: auto; }
  .card { padding: 24px; }
  .section, .styles-band { padding-top: 100px; }
  .section-head { margin-bottom: 40px; }
  .shot { width: 220px; }
  .dl { padding: 24px; }
  .footer .muted { margin-left: 0; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .window { transform: none; }
}