:root { --bg: #050506; --bg-2: #09090b; --surface: #0f0f12; --surface-2: #141419; --surface-3: #1a1a21; --line: rgba(255, 255, 255, 0.09); --line-2: rgba(255, 255, 255, 0.16); --text: #f6f6f8; --muted: rgba(246, 246, 248, 0.58); --muted-2: rgba(246, 246, 248, 0.36); --pink: #eb258b; --pink-2: #ff5fb0; --pink-3: #ff9ecb; --violet: #8b5cf6; --cyan: #4debff; --green: #35d39a; --max: 1200px; --gutter: clamp(20px, 4vw, 56px); --radius: 18px; --ease: cubic-bezier(0.22, 0.8, 0.2, 1); --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI",
    system-ui, -apple-system, sans-serif; --mono: "SFMono-Regular", "JetBrains Mono", "Cascadia Code", Consolas,
    "Liberation Mono", monospace; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; text-size-adjust: 100%; }
body { margin: 0px; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 16px; line-height: 1.6; overflow-x: hidden; -webkit-font-smoothing: antialiased; text-rendering: optimizelegibility; }
::selection { background: rgba(235, 37, 139, 0.35); color: rgb(255, 255, 255); }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0px; cursor: pointer; }
h1, h2, h3, h4, p { margin: 0px; }
img, svg { display: block; }
.mono { font-family: var(--mono); }
.grain { position: fixed; inset: 0px; z-index: 9999; pointer-events: none; opacity: 0.032; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E"); }
.announce { position: relative; z-index: 60; display: flex; align-items: center; justify-content: center; min-height: 40px; padding: 8px 44px; background: linear-gradient(90deg, rgb(240, 45, 154) 0%, rgb(192, 75, 216) 38%, rgb(123, 108, 246) 70%, rgb(74, 168, 240) 100%); color: rgb(255, 255, 255); font-size: 13.5px; letter-spacing: 0.01em; }
.announce-inner { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: center; text-align: center; }
.announce-inner a { display: inline-flex; align-items: center; gap: 4px; padding: 3px 12px; border-radius: 999px; background: rgba(255, 255, 255, 0.18); font-size: 12.5px; transition: background 0.2s; }
.announce-inner a:hover { background: rgba(255, 255, 255, 0.28); }
.announce .dot { width: 6px; height: 6px; border-radius: 50%; background: rgb(255, 255, 255); box-shadow: rgba(255, 255, 255, 0.22) 0px 0px 0px 4px; }
.announce-close { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); width: 26px; height: 26px; border-radius: 50%; color: rgba(255, 255, 255, 0.85); font-size: 18px; line-height: 1; display: grid; place-items: center; }
.announce-close:hover { background: rgba(255, 255, 255, 0.18); }
.announce.is-hidden { display: none; }
.nav { position: sticky; top: 0px; z-index: 50; transition: background 0.35s var(--ease), border-color 0.35s var(--ease),
    backdrop-filter 0.35s var(--ease); border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(5, 5, 6, 0.88); border-bottom-color: var(--line); backdrop-filter: blur(18px) saturate(160%); }
.nav-inner { max-width: 1400px; margin: 0px auto; height: 74px; padding: 0 var(--gutter); display: flex; align-items: center; gap: 40px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark { display: inline-flex; filter: drop-shadow(rgba(235, 37, 139, 0.3) 0px 4px 14px); }
.brand-text { font-size: 17px; font-weight: 600; letter-spacing: -0.02em; }
.brand-text strong { font-weight: 800; }
.nav-links { display: flex; align-items: center; gap: 30px; margin-left: 8px; }
.nav-links a { position: relative; font-size: 14.5px; color: rgba(255, 255, 255, 0.72); transition: color 0.2s; }
.nav-links a::after { content: ""; position: absolute; left: 0px; right: 100%; bottom: -7px; height: 1px; background: var(--pink-2); transition: right 0.3s var(--ease); }
.nav-links a:hover { color: rgb(255, 255, 255); }
.nav-links a:hover::after { right: 0px; }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.lang { display: inline-flex; align-items: center; gap: 7px; padding: 8px 10px; border-radius: 8px; font-size: 13.5px; color: rgba(255, 255, 255, 0.66); transition: color 0.2s, background 0.2s; }
.lang:hover { color: rgb(255, 255, 255); background: rgba(255, 255, 255, 0.06); }
.burger { display: none; width: 40px; height: 40px; border-radius: 10px; place-items: center; gap: 5px; flex-direction: column; }
.burger span { display: block; width: 18px; height: 1.6px; background: rgb(255, 255, 255); transition: transform 0.3s var(--ease), opacity 0.3s; }
.burger[aria-expanded="true"] span:first-child { transform: translateY(3.3px) rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { transform: translateY(-3.3px) rotate(-45deg); }
.mobile-menu { position: fixed; inset: 0px; z-index: 45; padding: 110px var(--gutter) 40px; background: rgba(5, 5, 6, 0.97); backdrop-filter: blur(20px); display: flex; flex-direction: column; gap: 6px; opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity 0.3s, visibility 0.3s, transform 0.3s var(--ease); }
.mobile-menu.open { opacity: 1; visibility: visible; transform: none; }
.mobile-menu > a { padding: 16px 4px; font-size: 20px; font-weight: 600; border-bottom: 1px solid var(--line); }
.mobile-menu > button { width: 100%; padding: 16px 4px; border-bottom: 1px solid var(--line); border-radius: 0; text-align: left; font-size: 20px; font-weight: 600; }
.mobile-menu .btn { margin-top: 24px; justify-content: center; }
.console-link { white-space: nowrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0px 22px; border-radius: 12px; font-size: 14.5px; font-weight: 600; letter-spacing: 0.01em; white-space: nowrap; transition: transform 0.25s var(--ease), box-shadow 0.25s, background 0.25s,
    border-color 0.25s, opacity 0.25s; }
.btn-sm { height: 38px; padding: 0px 18px; font-size: 13.5px; border-radius: 10px; }
.btn-lg { height: 52px; padding: 0px 30px; font-size: 15.5px; border-radius: 13px; }
.btn-primary { color: rgb(255, 255, 255); background: linear-gradient(135deg, rgb(255, 61, 154) 0%, rgb(235, 37, 139) 55%, rgb(207, 31, 121) 100%); box-shadow: rgba(235, 37, 139, 0.34) 0px 10px 34px, rgba(255, 255, 255, 0.26) 0px 1px 0px inset; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: rgba(235, 37, 139, 0.46) 0px 16px 44px, rgba(255, 255, 255, 0.3) 0px 1px 0px inset; }
.btn-light { color: rgb(10, 10, 12); background: rgb(255, 255, 255); box-shadow: rgba(0, 0, 0, 0.28) 0px 6px 22px; }
.btn-light:hover { transform: translateY(-1px); background: rgb(241, 241, 244); }
.btn-ghost { color: var(--text); border: 1px solid var(--line-2); background: rgba(255, 255, 255, 0.02); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.07); border-color: rgba(255, 255, 255, 0.3); transform: translateY(-1px); }
.btn[disabled] { opacity: 0.4; cursor: not-allowed; transform: none; }
.hero { position: relative; height: 100svh; background: var(--bg); }
.hero-pin { position: sticky; top: 0px; height: 100svh; display: flex; align-items: center; justify-content: center; padding: 96px var(--gutter) clamp(90px, 13vh, 150px); overflow: hidden; isolation: isolate; }
.hero-pin::before { content: ""; position: absolute; inset: 0px; background: radial-gradient(1000px 620px at 50% 22%, rgba(235, 37, 139, 0.14), transparent 62%), radial-gradient(760px 520px at 78% 62%, rgba(139, 92, 246, 0.1), transparent 65%), radial-gradient(700px 500px at 18% 70%, rgba(77, 235, 255, 0.06), transparent 65%); z-index: -2; }
.hero-grid { position: absolute; inset: 0px; z-index: -1; background-image: linear-gradient(rgba(255, 255, 255, 0.043) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.043) 1px, transparent 1px); background-size: 72px 72px; mask-image: radial-gradient(70% 60% at 50% 45%, rgb(0, 0, 0) 20%, transparent 78%); opacity: 0.7; }
.hero-glow { position: absolute; left: 50%; top: 42%; width: 760px; height: 420px; transform: translate(-50%, -50%); background: radial-gradient(closest-side, rgba(235, 37, 139, 0.18), transparent); filter: blur(40px); z-index: -1; pointer-events: none; }
.scatter { position: absolute; inset: 0px; z-index: 2; max-width: 1560px; margin: 0px auto; pointer-events: none; perspective: 1200px; perspective-origin: 50% 50%; }
.tile { position: absolute; left: 50%; top: 50%; width: clamp(84px, 9.4vw, 148px); aspect-ratio: 4 / 3; margin: 0px; border-radius: 14px; overflow: hidden; will-change: transform, opacity; transform: translate3d(-50%, -50%, 0px); box-shadow: rgba(0, 0, 0, 0.55) 0px 22px 60px, rgba(255, 255, 255, 0.09) 0px 0px 0px 1px; backface-visibility: hidden; }
.tile-clip { width: 100%; height: 100%; overflow: hidden; border-radius: inherit; background: rgb(20, 20, 26); }
.tile img, .tile video { width: 100%; height: 100%; object-fit: cover; display: block; }
.tile::after { content: ""; position: absolute; inset: 0px; border-radius: inherit; box-shadow: rgba(255, 255, 255, 0.12) 0px 1px 0px inset; pointer-events: none; }
.tile.t1 { width: clamp(96px, 10.6vw, 168px); aspect-ratio: 1 / 1; }
.tile.t2 { width: clamp(74px, 8.2vw, 128px); aspect-ratio: 3 / 4; }
.tile.t3 { width: clamp(80px, 8.8vw, 138px); aspect-ratio: 1 / 1; }
.tile.t4 { width: clamp(88px, 9.6vw, 152px); aspect-ratio: 4 / 5; }
.tile.t5 { width: clamp(70px, 7.6vw, 120px); aspect-ratio: 1 / 1; }
.tile.t6 { width: clamp(92px, 10vw, 158px); aspect-ratio: 4 / 3; }
.tile.t7 { width: clamp(78px, 8.6vw, 134px); aspect-ratio: 9 / 16; }
.tile.t8 { width: clamp(96px, 10.4vw, 164px); aspect-ratio: 1 / 1; }
.tile.t9 { width: clamp(76px, 8.4vw, 130px); aspect-ratio: 4 / 3; }
.tile.t10 { width: clamp(84px, 9.2vw, 144px); aspect-ratio: 3 / 4; }
.tile.t11 { width: clamp(72px, 7.8vw, 122px); aspect-ratio: 1 / 1; }
.tile.t12 { width: clamp(86px, 9.4vw, 148px); aspect-ratio: 3 / 4; }
.tile.t13 { width: clamp(70px, 7.6vw, 118px); aspect-ratio: 4 / 3; }
.hero-copy { position: relative; z-index: 3; max-width: 780px; text-align: center; will-change: transform, opacity; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 7px 15px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255, 255, 255, 0.035); font-size: 12.5px; letter-spacing: 0.12em; color: rgba(255, 255, 255, 0.7); text-transform: uppercase; }
.eyebrow .live { width: 6px; height: 6px; border-radius: 50%; background: var(--pink-2); box-shadow: rgba(235, 37, 139, 0.6) 0px 0px 0px 0px; animation: 2.4s ease 0s infinite normal none running pulse; }
@keyframes pulse { 
  0% { box-shadow: rgba(235, 37, 139, 0.55) 0px 0px 0px 0px; }
  70% { box-shadow: rgba(235, 37, 139, 0) 0px 0px 0px 8px; }
  100% { box-shadow: rgba(235, 37, 139, 0) 0px 0px 0px 0px; }
}
.hero h1 { margin-top: 26px; font-size: clamp(38px, 5.6vw, 78px); line-height: 1.08; font-weight: 800; letter-spacing: -0.03em; text-shadow: rgba(0, 0, 0, 0.55) 0px 18px 60px; }
.grad-text { background: linear-gradient(100deg, rgb(255, 255, 255) 0%, rgb(255, 195, 224) 26%, rgb(255, 95, 176) 52%, rgb(177, 140, 255) 78%, rgb(126, 230, 255) 100%) text; color: transparent; }
.pink-text { color: var(--pink-2); }
.hero-sub { margin: 26px auto 0px; max-width: 560px; font-size: clamp(15px, 1.3vw, 17px); line-height: 1.75; color: var(--muted); text-shadow: rgba(0, 0, 0, 0.6) 0px 2px 20px; }
.hero-actions { margin-top: 36px; display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; }
.hero-meta { margin-top: 28px; display: flex; align-items: center; justify-content: center; gap: 14px; font-size: 12.5px; color: var(--muted-2); }
.hero-meta i { width: 3px; height: 3px; border-radius: 50%; background: var(--muted-2); }
.scroll-hint { position: absolute; left: 50%; bottom: 26px; z-index: 4; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 9px; font-size: 10.5px; letter-spacing: 0.22em; color: var(--muted-2); text-transform: uppercase; transition: opacity 0.4s; }
.scroll-hint span { width: 1px; height: 38px; background: linear-gradient(transparent, rgba(255, 255, 255, 0.5)); animation: drop 2.4s var(--ease) infinite; }
@keyframes drop { 
  0% { transform: scaleY(0); transform-origin: center top; opacity: 0; }
  40% { transform: scaleY(1); transform-origin: center top; opacity: 1; }
  70% { transform: scaleY(1); transform-origin: center bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: center bottom; opacity: 0; }
}
.tile-cap { position: absolute; left: 7px; bottom: 7px; z-index: 3; display: inline-flex; align-items: center; gap: 5px; padding: 3px 8px; border-radius: 999px; background: rgba(8, 8, 10, 0.66); backdrop-filter: blur(6px); font-size: 9.5px; color: rgba(255, 255, 255, 0.9); white-space: nowrap; }
.tile-cap::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--pink-2); }
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-2); padding: 30px var(--gutter) 32px; text-align: center; }
.strip-title { font-size: 19px; letter-spacing: 0.16em; color: var(--muted-2); text-transform: uppercase; }
.strip-row { margin-top: 18px; display: flex; align-items: center; justify-content: center; gap: clamp(10px, 3vw, 42px); flex-wrap: wrap; }
.strip-item { display: inline-flex; align-items: center; gap: 9px; font-size: 22px; color: rgba(255, 255, 255, 0.6); transition: color 0.22s; }
.strip-item svg { width: 26px; height: 26px; opacity: 0.7; transition: opacity 0.22s; }
.strip-item:hover { color: rgb(255, 255, 255); }
.strip-item:hover svg { opacity: 1; color: var(--pink-2); }
section { position: relative; }
.section-head { max-width: var(--max); margin: 0px auto; padding: 0 var(--gutter); }
.section-head.center { text-align: center; }
.section-head h2 { font-size: clamp(40px, 5vw, 74px); line-height: 1.14; letter-spacing: -0.02em; font-weight: 800; }
.section-head p { margin-top: 18px; font-size: clamp(18px, 1.5vw, 22px); color: var(--muted); max-width: 560px; }
.section-head.center p { margin-left: auto; margin-right: auto; }
.showcase .section-head h2 { font-size: 82px; }
.showcase .section-head p { font-size: 23px; max-width: 620px; }
/* ============================================================
   连续曲面展示：画面竖直排列，上下边缘向中间收拢
   ============================================================ */
.showcase {
  position: relative;
  padding: clamp(80px, 9vw, 130px) 0 clamp(56px, 6vw, 86px);
  overflow: hidden;
  background:
    radial-gradient(1000px 520px at 50% 26%, rgba(235, 37, 139, 0.13), transparent 66%),
    var(--bg);
}
.showcase .section-head { text-align: center; }
.showcase .section-head p { margin-left: auto; margin-right: auto; }

.fan {
  --fan-card-width: max(176px, 17.2vw);
  --fan-media-height: calc(var(--fan-card-width) * 332 / 224);
  --fan-arc-height: clamp(18px, 2.3vw, 48px);
  position: relative;
  margin-top: clamp(30px, 3.6vw, 52px);
  background: var(--bg);
}

.fan-viewport {
  position: relative;
  overflow: hidden;
  padding: 0;
  isolation: isolate;
  touch-action: pan-y;
}

.fan-arc {
  position: absolute;
  left: 0;
  z-index: 2;
  width: 100%;
  height: var(--fan-arc-height);
  fill: var(--bg);
  pointer-events: none;
}
.fan-arc-top { top: -1px; }
.fan-arc-bottom {
  top: calc(var(--fan-media-height) - var(--fan-arc-height) + 1px);
  transform: rotate(180deg);
}

.fan-track {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  padding: 0;
  cursor: grab;
  user-select: none;
}
.fan-track.dragging { cursor: grabbing; }

.fan-card {
  position: relative;
  flex: 0 0 auto;
  width: var(--fan-card-width);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.fan-media {
  position: relative;
  width: 100%;
  aspect-ratio: 224 / 332;
  border-radius: 0;
  overflow: hidden;
  background: #101014;
}
.fan-media img,
.fan-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.fan-media::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.07);
  pointer-events: none;
}
.fan-badge {
  position: absolute;
  left: 9px; top: calc(9px + var(--fan-lift, 0px));
  z-index: 3;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(6px);
  font-size: 9.5px;
  color: #fff;
}
.fan-play {
  position: absolute;
  left: 50%; top: 50%;
  z-index: 3;
  width: 44px; height: 44px;
  margin: -22px 0 0 -22px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.42);
  backdrop-filter: blur(6px);
}
.fan-play::after {
  content: "";
  position: absolute;
  left: 17px; top: 13px;
  border-left: 13px solid #fff;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
}
.fan-wave {
  position: absolute;
  right: 9px; top: calc(9px + var(--fan-lift, 0px));
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 3px;
  height: 18px;
  padding: 0 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
}
.fan-wave i {
  width: 2px;
  border-radius: 2px;
  background: #ff9ecb;
  animation: wave 1.1s ease-in-out infinite;
}
.fan-wave i:nth-child(1) { height: 5px; }
.fan-wave i:nth-child(2) { height: 10px; animation-delay: 0.1s; }
.fan-wave i:nth-child(3) { height: 14px; animation-delay: 0.2s; }
.fan-wave i:nth-child(4) { height: 8px; animation-delay: 0.3s; }
.fan-wave i:nth-child(5) { height: 12px; animation-delay: 0.15s; }

.fan-icon {
  position: relative;
  z-index: 4;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-top: -17px;
  border-radius: 50%;
  background: rgba(14, 14, 18, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.65);
  transform: translateY(calc(-1 * var(--fan-lift, 0px)));
  font-size: 18px;
  color: rgba(255, 255, 255, 0.78);
  transition: color 0.25s, border-color 0.25s;
}
.fan-card:hover .fan-icon {
  color: #ff9ecb;
  border-color: rgba(235, 37, 139, 0.5);
}
.fan-label {
  position: relative;
  z-index: 3;
  margin-top: 10px;
  transform: translateY(calc(-1 * var(--fan-lift, 0px)));
  font-size: clamp(14px, 1.1vw, 20px);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.78);
  white-space: nowrap;
}
.fan-card:hover .fan-label { color: #fff; }

.fan-arrow {
  position: absolute;
  top: 44%;
  z-index: 8;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.94);
  color: #0a0a0c;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  transition: transform 0.2s var(--ease), background 0.2s;
}
.fan-arrow:hover { background: #fff; transform: scale(1.07); }
.fan-arrow-l { left: clamp(8px, 2.6vw, 40px); }
.fan-arrow-r { right: clamp(8px, 2.6vw, 40px); }

.fan-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin-top: clamp(20px, 2.4vw, 32px);
}
.fan-dots i {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.22);
  transition: width 0.3s var(--ease), background 0.3s;
  cursor: pointer;
}
.fan-dots i.on { width: 22px; background: var(--pink-2); }

.fan-prompt {
  max-width: 780px;
  margin: clamp(24px, 3vw, 38px) auto 0;
  padding: 8px 8px 8px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.035);
}
.fp-ico {
  display: grid;
  place-items: center;
  width: 27px; height: 27px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
  color: rgba(255, 255, 255, 0.6);
}
.fp-text {
  flex: 1;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.62);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fp-go {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff4fa8, #eb258b);
  color: #fff;
  box-shadow: 0 8px 24px rgba(235, 37, 139, 0.45);
  transition: transform 0.2s var(--ease);
}
.fp-go:hover { transform: translateY(-2px) scale(1.04); }

.ring { padding: clamp(80px, 9vw, 130px) 0px; background: radial-gradient(800px 400px at 30% 20%, rgba(139, 92, 246, 0.1), transparent 60%),
    var(--bg-2); border-top: 1px solid var(--line); }
.ring-tabs { display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap; margin: 34px auto 0px; padding: 0 var(--gutter); max-width: 900px; }
.ring-tab { padding: 8px 17px; border-radius: 999px; border: 1px solid var(--line); font-size: 13.5px; color: rgba(255, 255, 255, 0.6); transition: all 0.25s var(--ease); }
.ring-tab:hover { color: rgb(255, 255, 255); border-color: var(--line-2); }
.ring-tab.active { background: rgb(255, 255, 255); color: rgb(8, 8, 10); border-color: rgb(255, 255, 255); font-weight: 600; box-shadow: rgba(255, 255, 255, 0.12) 0px 8px 26px; }
.ring-stage { max-width: var(--max); margin: clamp(34px, 4vw, 56px) auto 0px; padding: 0 var(--gutter); display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(28px, 4vw, 60px); align-items: center; }
.ring-visual { position: relative; border-radius: 22px; overflow: hidden; min-height: 380px; background: linear-gradient(150deg, rgb(22, 18, 28), rgb(11, 11, 15) 60%); border: 1px solid var(--line); box-shadow: rgba(0, 0, 0, 0.55) 0px 40px 100px; display: flex; align-items: center; justify-content: center; padding: clamp(20px, 3vw, 40px); }
.ring-glow { position: absolute; width: 60%; height: 60%; left: 10%; top: 8%; background: radial-gradient(closest-side, rgba(235, 37, 139, 0.35), transparent); filter: blur(50px); transition: background 0.5s; }
.ring-window { position: relative; z-index: 2; width: 100%; border-radius: 12px; overflow: hidden; background: rgb(11, 12, 16); border: 1px solid rgba(255, 255, 255, 0.12); box-shadow: rgba(0, 0, 0, 0.5) 0px 24px 60px; }
.rw-bar { display: flex; align-items: center; gap: 5px; height: 30px; padding: 0px 10px; background: rgba(255, 255, 255, 0.04); border-bottom: 1px solid rgba(255, 255, 255, 0.07); }
.rw-bar i { width: 6px; height: 6px; border-radius: 50%; background: rgba(255, 255, 255, 0.18); }
.rw-bar span { margin-left: 6px; font-family: var(--mono); font-size: 9.5px; color: var(--muted-2); }
.rw-body { height: 260px; padding: 16px; }
.ring-copy { max-width: 400px; }
.ring-kicker { font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em; color: var(--pink-2); }
.ring-copy h3 { margin-top: 10px; font-size: clamp(26px, 2.6vw, 34px); font-weight: 700; letter-spacing: -0.02em; }
.ring-copy p { margin-top: 14px; color: var(--muted); font-size: 15px; line-height: 1.8; }
.ring-copy .btn { margin-top: 26px; }
.scene-ui { height: 100%; display: flex; flex-direction: column; gap: 8px; }
.su-nav { display: flex; align-items: center; gap: 8px; }
.su-logo { width: 18px; height: 18px; border-radius: 5px; background: linear-gradient(135deg, rgb(235, 37, 139), rgb(139, 92, 246)); }
.su-line { height: 5px; border-radius: 3px; background: rgba(255, 255, 255, 0.12); }
.su-line.w40 { width: 40%; }
.su-line.w60 { width: 60%; }
.su-line.w70 { width: 70%; }
.su-line.bright { background: rgba(255, 255, 255, 0.6); height: 7px; }
.su-hero { margin-top: 14px; display: flex; flex-direction: column; gap: 7px; }
.su-cards { display: flex; gap: 8px; margin-top: auto; }
.su-cards div { flex: 1 1 0%; height: 52px; border-radius: 6px; background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.06); }
.su-code { font-family: var(--mono); font-size: 9.5px; line-height: 2; color: rgba(255, 255, 255, 0.55); }
.su-code p { white-space: nowrap; }
.su-code .k { color: rgb(192, 132, 252); }
.su-code .s { color: rgb(134, 239, 172); }
.su-code .n { color: rgb(251, 191, 36); }
.su-term { font-family: var(--mono); font-size: 9.5px; line-height: 2.1; color: rgba(255, 255, 255, 0.6); }
.su-term .g { color: rgb(74, 222, 128); }
.su-term .p { color: var(--pink-2); }
.su-chart { display: flex; align-items: flex-end; gap: 7px; height: 100%; padding-top: 10px; }
.su-chart i { flex: 1 1 0%; border-radius: 4px 4px 0px 0px; background: linear-gradient(to top, rgba(235, 37, 139, 0.3), rgb(255, 95, 176)); }
.su-chart i:nth-child(2n) { background: linear-gradient(to top, rgba(139, 92, 246, 0.3), rgb(167, 139, 250)); }
.su-note { margin-top: 8px; font-size: 9.5px; color: var(--muted-2); }
.features { padding: clamp(90px, 10vw, 140px) 0px; background: var(--bg); }
.feature-wrap { max-width: var(--max); margin: clamp(44px, 5vw, 70px) auto 0px; padding: 0 var(--gutter); display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(24px, 4vw, 56px); align-items: start; }
.feature-list { display: flex; flex-direction: column; }
.feature-item { display: flex; gap: 14px; padding: 18px 16px; text-align: left; border-radius: 12px; border-width: 1px; border-style: solid; border-top-color: transparent; border-right-color: transparent; border-left-color: transparent; border-image: none; border-bottom-color: var(--line); transition: background 0.25s, border-color 0.25s; }
.feature-item:last-child { border-bottom-color: transparent; }
.feature-item:hover { background: rgba(255, 255, 255, 0.03); }
.feature-item.active { background: rgba(255, 255, 255, 0.043); border-color: var(--line); }
.fi-num { font-family: var(--mono); font-size: 10.5px; color: var(--muted-2); padding-top: 3px; transition: color 0.25s; }
.feature-item.active .fi-num { color: var(--pink-2); }
.fi-main strong { display: block; font-size: 16.5px; font-weight: 600; letter-spacing: -0.01em; }
.fi-main small { display: block; margin-top: 3px; font-size: 13px; color: var(--muted-2); line-height: 1.5; }
.feature-item.active .fi-main small { color: var(--muted); }
.feature-panel { position: sticky; top: 100px; }
.fp-window { border-radius: 16px; overflow: hidden; border: 1px solid var(--line-2); background: rgb(10, 11, 14); box-shadow: rgba(0, 0, 0, 0.55) 0px 40px 100px; }
.fp-bar { display: flex; align-items: center; gap: 5px; height: 38px; padding: 0px 12px; background: rgba(255, 255, 255, 0.035); border-bottom: 1px solid var(--line); }
.fp-bar i { width: 7px; height: 7px; border-radius: 50%; background: rgba(255, 255, 255, 0.16); }
.fp-bar span { margin-left: 8px; font-family: var(--mono); font-size: 10.5px; color: var(--muted-2); }
.fp-bar em { margin-left: auto; font-style: normal; font-size: 9.5px; color: var(--green); padding: 2px 7px; border-radius: 5px; background: rgba(53, 211, 154, 0.1); }
.fp-code { padding: 18px 20px; min-height: 330px; font-size: 12px; line-height: 2; color: rgba(255, 255, 255, 0.62); overflow: hidden; }
.fp-code .ln { display: flex; gap: 16px; white-space: pre; }
.fp-code .ln b { color: rgba(255, 255, 255, 0.18); font-weight: 400; min-width: 18px; text-align: right; }
.fp-code .k { color: rgb(192, 132, 252); }
.fp-code .s { color: rgb(134, 239, 172); }
.fp-code .n { color: rgb(251, 191, 36); }
.fp-code .c { color: rgba(255, 255, 255, 0.28); }
.fp-code .hl { background: rgba(235, 37, 139, 0.1); box-shadow: inset 2px 0 0 var(--pink); }
.fp-foot { display: flex; align-items: center; gap: 8px; margin-top: 12px; padding: 0px 4px; font-size: 11.5px; color: var(--muted-2); }
.fp-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: rgba(53, 211, 154, 0.6) 0px 0px 8px; }
.models { padding: clamp(90px, 10vw, 140px) 0px; background: radial-gradient(760px 420px at 70% 10%, rgba(139, 92, 246, 0.12), transparent 62%),
    var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.model-grid { max-width: var(--max); margin: clamp(40px, 4.5vw, 60px) auto 0px; padding: 0 var(--gutter); display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.model-card { position: relative; padding: 22px 20px 24px; border-radius: 16px; border: 1px solid var(--line); background: linear-gradient(170deg, rgba(255, 255, 255, 0.043), rgba(255, 255, 255, 0.01)); transition: transform 0.3s var(--ease), border-color 0.3s, background 0.3s; overflow: hidden; }
.model-card::before { content: ""; position: absolute; inset: 0px; background: radial-gradient(220px 120px at 20% 0%, rgba(235, 37, 139, 0.12), transparent 70%); opacity: 0; transition: opacity 0.3s; pointer-events: none; }
.model-card:hover { transform: translateY(-4px); border-color: var(--line-2); }
.model-card:hover::before { opacity: 1; }
.model-top { display: flex; align-items: center; justify-content: space-between; }
.model-logo { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 11px; font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: -0.02em; color: rgb(255, 255, 255); border: 1px solid rgba(255, 255, 255, 0.14); }
.lg-gpt { background: linear-gradient(140deg, rgb(31, 111, 92), rgb(14, 59, 51)); }
.lg-sol { background: linear-gradient(140deg, rgb(176, 36, 110), rgb(91, 17, 64)); }
.lg-ds { background: linear-gradient(140deg, rgb(30, 58, 138), rgb(15, 30, 77)); }
.lg-glm { background: linear-gradient(140deg, rgb(109, 40, 217), rgb(51, 21, 107)); }
.lg-kimi { background: linear-gradient(140deg, rgb(15, 118, 110), rgb(6, 61, 57)); }
.lg-cx { background: linear-gradient(140deg, rgb(55, 65, 81), rgb(17, 24, 39)); }
.lg-img { background: linear-gradient(140deg, rgb(245, 158, 11), rgb(180, 83, 9)); }
.lg-vid { background: linear-gradient(140deg, rgb(14, 165, 233), rgb(3, 105, 161)); }
.model-tag { padding: 3px 9px; border-radius: 999px; border: 1px solid var(--line); font-size: 10.5px; color: var(--muted-2); }
.model-tag.hot { color: rgb(255, 214, 234); border-color: rgba(235, 37, 139, 0.4); background: rgba(235, 37, 139, 0.12); }
.model-card h3 { margin-top: 16px; font-family: var(--mono); font-size: 15.5px; font-weight: 600; letter-spacing: -0.01em; }
.model-card p { margin-top: 8px; font-size: 13px; line-height: 1.7; color: var(--muted); }
.model-note { max-width: var(--max); margin: 22px auto 0px; padding: 0 var(--gutter); text-align: center; font-size: 12px; color: var(--muted-2); }
.tools { padding: clamp(90px, 10vw, 140px) 0px; background: var(--bg); }
.tool-list { max-width: 900px; margin: clamp(36px, 4vw, 54px) auto 0px; padding: 0 var(--gutter); }
.tool { border-bottom: 1px solid var(--line); }
.tool:first-child { border-top: 1px solid var(--line); }
.tool summary { display: flex; align-items: center; justify-content: space-between; padding: 22px 4px; cursor: pointer; list-style: none; }
.tool summary::-webkit-details-marker { display: none; }
.tool-name { font-size: clamp(17px, 1.7vw, 20px); font-weight: 600; letter-spacing: -0.01em; }
.tool-plus { font-size: 18px; color: var(--muted-2); transition: color 0.2s, transform 0.3s var(--ease); }
.tool[open] .tool-plus { color: var(--pink-2); }
.tool-body { padding: 0px 4px 24px; }
.tool-body p { max-width: 640px; color: var(--muted); font-size: 14.5px; line-height: 1.8; }
.tool-chip { display: inline-block; margin: 14px 6px 0px 0px; padding: 4px 11px; border-radius: 999px; border: 1px solid var(--line); font-size: 11.5px; color: var(--muted-2); }
.who { padding: clamp(80px, 9vw, 130px) 0px; background: var(--bg-2); border-top: 1px solid var(--line); }
.who-grid { max-width: var(--max); margin: clamp(36px, 4vw, 54px) auto 0px; padding: 0 var(--gutter); display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.who-card { padding: 26px 22px; border-radius: 16px; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.02); transition: background 0.25s, border-color 0.25s, transform 0.25s var(--ease); }
.who-card:hover { background: rgba(255, 255, 255, 0.043); border-color: var(--line-2); transform: translateY(-3px); }
.who-ico { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: rgba(235, 37, 139, 0.12); color: var(--pink-2); font-size: 15px; }
.who-card h3 { margin-top: 16px; font-size: 16.5px; font-weight: 600; }
.who-card p { margin-top: 8px; font-size: 13px; line-height: 1.7; color: var(--muted); }
.faq { padding: clamp(90px, 10vw, 140px) 0px; background: var(--bg); }
.faq-list { max-width: 900px; margin: clamp(34px, 4vw, 50px) auto 0px; padding: 0 var(--gutter); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:first-child { border-top: 1px solid var(--line); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 4px; cursor: pointer; list-style: none; font-size: 15.5px; font-weight: 500; transition: color 0.2s; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--pink-3); }
.faq-item summary span { flex-shrink: 0; font-size: 17px; color: var(--muted-2); transition: transform 0.3s var(--ease), color 0.2s; }
.faq-item[open] summary span { transform: rotate(45deg); color: var(--pink-2); }
.faq-a { padding: 0px 4px 22px; max-width: 720px; color: var(--muted); font-size: 14px; line-height: 1.85; }
.cta { position: relative; padding: clamp(100px, 12vw, 170px) var(--gutter); text-align: center; overflow: hidden; background: rgb(3, 3, 4); border-top: 1px solid var(--line); }
.cta-glow { position: absolute; left: 50%; top: 50%; width: 900px; height: 520px; transform: translate(-50%, -50%); background: radial-gradient(closest-side, rgba(235, 37, 139, 0.28), transparent 70%), radial-gradient(closest-side at 70% 40%, rgba(139, 92, 246, 0.2), transparent 70%); filter: blur(30px); pointer-events: none; }
.cta-inner { position: relative; z-index: 2; max-width: 820px; margin: 0px auto; }
.cta h2 { margin-top: 24px; font-size: clamp(38px, 5.4vw, 74px); line-height: 1.18; letter-spacing: -0.02em; font-weight: 800; }
.cta h2 .grad-text { display: inline-block; padding-bottom: 0.08em; line-height: 1.12; }
.cta p { margin-top: 20px; font-size: 16px; color: var(--muted); }
.download-row { margin-top: 36px; display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; }
.version { margin-top: 18px; font-size: 11.5px; color: var(--muted-2); }
.footer { background: rgb(3, 3, 4); border-top: 1px solid var(--line); padding: 56px var(--gutter) 26px; }
.footer-inner { max-width: var(--max); margin: 0px auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.footer-brand p { margin-top: 14px; font-size: 13px; color: var(--muted-2); }
.footer-col h4 { font-size: 12.5px; font-weight: 600; color: rgba(255, 255, 255, 0.8); }
.footer-col a { display: block; margin-top: 11px; font-size: 13px; color: var(--muted-2); transition: color 0.2s; }
.footer-col a:hover { color: rgb(255, 255, 255); }
.footer-bottom { max-width: var(--max); margin: 44px auto 0px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 11.5px; color: var(--muted-2); }
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (max-width: 1180px) {
  .tile.t5, .tile.t9, .tile.t13 { display: none; }
  .hero-copy { max-width: 700px; }
}
@media (max-width: 1024px) {
  .nav-inner { gap: 20px; }
  .nav-right { gap: 8px; }
  .nav-right .btn-sm { padding-left: 12px; padding-right: 12px; }
  .nav-right .lang { padding-left: 6px; padding-right: 6px; }
  .nav-links { gap: 22px; }
  .nav-links a { font-size: 14px; }
  .ring-stage { grid-template-columns: 1fr; }
  .ring-copy { max-width: 620px; }
  .ring-visual { min-height: 340px; }
  .feature-wrap { grid-template-columns: 1fr; }
  .feature-panel { position: static; order: -1; }
  .model-grid { grid-template-columns: repeat(2, 1fr); }
  .who-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .nav-links, .lang { display: none; }
  .mobile-menu .mobile-lang { display: flex; }
  .burger { display: flex; }
  .nav-inner { height: 66px; gap: 16px; }
  .hero { height: auto; }
  .hero-pin { position: relative; height: auto; min-height: 100svh; padding-top: 92px; padding-bottom: 80px; }
  .scatter { display: none; }
  .hero h1 { font-size: clamp(42px, 11vw, 64px); }
  .hero-sub { font-size: 15px; }
  .showcase .section-head h2 { font-size: 64px; }
  .showcase .section-head p { font-size: 21px; }
  .br-pc { display: none; }
  .scroll-hint { display: none; }
  .curve { height: 400px; }
  .curve-card { width: 240px; height: 330px; margin-left: -120px; margin-top: -165px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  .announce { font-size: 12px; padding-right: 40px; padding-left: 16px; }
  .announce-inner { gap: 7px; }
  .announce-inner a { display: none; }
  .nav-right .btn { display: none; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-meta { flex-wrap: wrap; gap: 9px; }
  .strip-row { gap: 12px 18px; }
  .strip-item { font-size: 20px; }
  .showcase .section-head h2 { font-size: 46px; }
  .showcase .section-head p { font-size: 19px; }
  .curve { height: 360px; }
  .curve-card { width: 210px; height: 292px; margin-left: -105px; margin-top: -146px; }
  .mini { padding: 12px; inset: 0px 0px 46px; }
  .model-grid { grid-template-columns: 1fr; }
  .who-grid { grid-template-columns: 1fr; }
  .fp-code { font-size: 10.5px; min-height: 260px; padding: 14px; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .cta h2 { font-size: 36px; }
  .download-row { flex-direction: column; }
  .download-row .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

.brand-mark img { width: 30px; height: 30px; object-fit: contain; }