/* Wild Live Studio 官网。纯静态、无外部字体和脚本（隐私政策承诺不追踪，网站本身也不引第三方资源）。 */
:root {
  --bg: #07080d;
  --bg-2: #0d1019;
  --panel: rgba(255, 255, 255, 0.045);
  --line: rgba(255, 255, 255, 0.09);
  --text: #eef1f7;
  --muted: #9aa3b5;
  --faint: #6b7385;
  --teal: #12d2b6;
  --blue: #3a72ff;
  --violet: #8a55ff;
  --live: #ff3b30;
  --go: #30d158;
  --grad: linear-gradient(110deg, var(--teal), var(--blue) 50%, var(--violet));
  --radius: 22px;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img, svg { display: block; }

/* 双语：<html data-lang="en|zh">，只显示当前语言的块 */
html[data-lang="en"] [lang="zh"],
html[data-lang="zh"] [lang="en"] { display: none !important; }

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }

/* 顶栏 */
.top {
  position: sticky; top: 0; z-index: 10;
  background: rgba(7, 8, 13, 0.72);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; gap: 20px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 650; letter-spacing: -0.01em; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.nav { display: flex; gap: 18px; margin-left: auto; font-size: 14px; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); }
.lang {
  display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 2px; font-size: 13px;
}
.lang button {
  appearance: none; border: 0; background: none; color: var(--muted); font: inherit;
  padding: 3px 10px; border-radius: 999px; cursor: pointer;
}
.lang button[aria-pressed="true"] { background: rgba(255, 255, 255, 0.12); color: var(--text); }

/* 首屏 */
.hero { position: relative; overflow: hidden; padding: 88px 0 72px; }
.hero::before {
  content: ""; position: absolute; inset: -40% -10% auto; height: 120%;
  background:
    radial-gradient(40% 50% at 25% 40%, rgba(18, 210, 182, 0.16), transparent 70%),
    radial-gradient(45% 55% at 75% 30%, rgba(138, 85, 255, 0.18), transparent 70%);
  pointer-events: none;
}
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font: 600 12px/1 var(--mono);
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--live); box-shadow: 0 0 0 4px rgba(255, 59, 48, 0.18); animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 7px rgba(255, 59, 48, 0.05); } }
h1 { font-size: clamp(38px, 6vw, 64px); line-height: 1.05; letter-spacing: -0.035em; margin: 18px 0 20px; font-weight: 750; }
h1 .g { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: clamp(17px, 2vw, 19px); color: var(--muted); max-width: 34em; margin: 0 0 30px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 12px 20px; border-radius: 14px;
  font-weight: 600; text-decoration: none; border: 1px solid var(--line); background: var(--panel);
}
.btn.primary { background: #fff; color: #000; border-color: #fff; }
.btn small { display: block; font-size: 11px; font-weight: 500; opacity: 0.6; line-height: 1.1; }
.btn .t { line-height: 1.15; }
.note { font-size: 13px; color: var(--faint); margin-top: 14px; }

/* 手机示意（纯 CSS，不放真人截图） */
.phone {
  justify-self: center; width: min(300px, 100%); aspect-ratio: 9 / 19.5; border-radius: 46px; padding: 12px;
  background: linear-gradient(160deg, #2a2f3d, #0d0f16 40%, #1a1d27);
  box-shadow: 0 40px 80px -30px rgba(58, 114, 255, 0.45), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}
.screen { position: relative; height: 100%; border-radius: 36px; overflow: hidden; background: #000; display: flex; flex-direction: column; padding: 46px 14px 16px; gap: 10px; }
.screen .bar { display: flex; justify-content: space-between; align-items: center; font: 600 13px var(--sans); }
.screen .icons { display: flex; gap: 6px; }
.screen .icons i { width: 24px; height: 24px; border-radius: 50%; background: rgba(255, 255, 255, 0.1); }
.feed {
  position: relative; flex: 1; border-radius: 18px; border: 2px solid var(--live);
  background:
    radial-gradient(70% 45% at 50% 30%, rgba(255, 200, 140, 0.35), transparent 70%),
    linear-gradient(180deg, #3b4256 0%, #232634 55%, #15171f 100%);
}
.feed::after { content: ""; position: absolute; left: 12%; right: 12%; bottom: 0; height: 46%; background: linear-gradient(180deg, #2b2f3f, #0f1118); clip-path: polygon(20% 100%, 30% 30%, 50% 0, 70% 30%, 80% 100%); opacity: 0.9; }
.badge {
  position: absolute; top: 10px; left: 10px; z-index: 1; display: flex; gap: 6px; align-items: center;
  font: 700 11px var(--mono); padding: 5px 8px; border-radius: 8px; background: rgba(0, 0, 0, 0.55);
}
.badge .dot { width: 6px; height: 6px; box-shadow: none; }
.rate { position: absolute; top: 10px; right: 10px; z-index: 1; text-align: right; font: 700 18px var(--sans); line-height: 1; }
.rate span { display: block; font: 500 9px var(--mono); color: var(--muted); margin-top: 3px; }
.island { display: flex; gap: 8px; align-items: center; padding: 8px; border-radius: 20px; background: rgba(255, 255, 255, 0.08); }
.island i { width: 30px; height: 30px; border-radius: 50%; background: rgba(255, 255, 255, 0.12); }
.island b { margin-left: auto; padding: 8px 14px; border-radius: 14px; background: var(--live); font-size: 12px; }
.params { display: flex; justify-content: space-between; font: 600 11px var(--mono); color: var(--muted); padding: 0 4px; }

/* 区块 */
section { padding: 76px 0; border-top: 1px solid var(--line); }
h2 { font-size: clamp(28px, 3.6vw, 38px); letter-spacing: -0.025em; line-height: 1.15; margin: 0 0 14px; }
.sub { color: var(--muted); max-width: 40em; margin: 0 0 40px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { margin: 14px 0 6px; font-size: 17px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.ico { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: rgba(58, 114, 255, 0.14); color: #8fb0ff; }
.ico svg { width: 20px; height: 20px; }

/* 三步 */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.step { position: relative; padding: 24px 24px 24px 64px; border-radius: var(--radius); border: 1px solid var(--line); }
.step::before {
  counter-increment: s; content: counter(s); position: absolute; left: 20px; top: 22px;
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  font: 700 14px var(--mono); background: var(--grad); color: #fff;
}
.step h3 { margin: 0 0 4px; font-size: 17px; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

/* 价格 */
.plans { display: grid; grid-template-columns: 1fr 1.3fr; gap: 16px; align-items: stretch; }
.plan { border-radius: var(--radius); padding: 28px; border: 1px solid var(--line); background: var(--panel); }
.plan.pro { position: relative; background: linear-gradient(var(--bg-2), var(--bg-2)) padding-box, var(--grad) border-box; border: 1px solid transparent; }
.plan h3 { margin: 0 0 4px; font-size: 20px; }
.plan .big { font-size: 40px; font-weight: 750; letter-spacing: -0.03em; margin: 10px 0 2px; }
.plan ul { padding: 0; margin: 18px 0 0; list-style: none; }
.plan li { padding: 7px 0 7px 26px; position: relative; color: var(--muted); font-size: 15px; }
.plan li::before { content: ""; position: absolute; left: 2px; top: 14px; width: 12px; height: 6px; border-left: 2px solid var(--teal); border-bottom: 2px solid var(--teal); transform: rotate(-45deg); }
.prices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }
.price { border-radius: 14px; padding: 14px; background: rgba(255, 255, 255, 0.05); text-align: center; }
.price b { display: block; font-size: 22px; letter-spacing: -0.02em; }
.price span { font-size: 13px; color: var(--muted); }

/* 文档页（隐私 / 支持） */
.doc { padding: 56px 0 80px; }
.doc .wrap { max-width: 760px; }
.doc h1 { font-size: clamp(32px, 5vw, 44px); margin: 0 0 8px; }
.doc .meta { color: var(--faint); font: 13px var(--mono); margin-bottom: 28px; }
.doc h2 { font-size: 21px; margin: 40px 0 10px; letter-spacing: -0.01em; }
.doc h3 { font-size: 17px; margin: 24px 0 6px; }
.doc p, .doc li { color: #c8cdd8; }
.doc ul { padding-left: 1.2em; }
.doc li { margin: 6px 0; }
.doc strong { color: var(--text); }
.summary { border-radius: var(--radius); padding: 20px 22px; background: rgba(18, 210, 182, 0.08); border: 1px solid rgba(18, 210, 182, 0.25); }
.summary p { margin: 0; color: var(--text); }
.contact { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; border-radius: var(--radius); padding: 22px; background: var(--panel); border: 1px solid var(--line); margin: 28px 0; }
.contact p { margin: 0; }
details { border-bottom: 1px solid var(--line); padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--muted); font-weight: 400; }
details[open] summary::after { content: "–"; }
details p { margin: 10px 0 0; }
code { font: 13px var(--mono); background: rgba(255, 255, 255, 0.07); padding: 2px 6px; border-radius: 6px; word-break: break-all; }

/* 页脚 */
footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--faint); font-size: 13px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
footer nav { display: flex; gap: 18px; }
footer a { text-decoration: none; color: var(--muted); }

@media (max-width: 880px) {
  .hero { padding: 56px 0 48px; }
  .hero .wrap, .plans { grid-template-columns: 1fr; }
  .grid, .steps { grid-template-columns: 1fr; }
  .phone { width: min(260px, 80%); }
}
@media (max-width: 560px) {
  .nav { display: none; }
  .lang { margin-left: auto; }
  .prices { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
}
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } }
.sub.flush { margin: 0; }