/* 酿酒之星 · 门户首页
   深色科技感：深底 + 青色点缀 + 琥珀（麦汁色）作辅助。
   纯静态，没有构建步骤 —— 改完直接传上去就是所见即所得。 */

:root {
  --bg: #0a0d10;
  --bg2: #0e141a;
  --bg3: #121a21;
  --line: rgba(24, 224, 255, 0.14);
  --line-strong: rgba(24, 224, 255, 0.32);
  --cyan: #18e0ff;
  --cyan-dim: #7fe6f7;
  --amber: #ffb242;
  --amber-dim: #ffe6ad;
  --green: #07c160;
  --text: #e7eef3;
  --muted: #8d9aa5;
  --radius: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
b, strong { color: #fff; font-weight: 600; }
img { max-width: 100%; display: block; }

.wrap { width: min(1180px, 92vw); margin: 0 auto; }

/* 待填写的地方：样式上刻意做得明显但不难看，等你替换真实内容 */
.todo {
  color: var(--amber);
  border-bottom: 1px dashed rgba(255, 178, 66, 0.5);
  font-weight: 500;
}

/* ============ 顶部导航 ============ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  transition: background 0.25s, border-color 0.25s, backdrop-filter 0.25s;
  border-bottom: 1px solid transparent;
}
.nav.on {
  background: rgba(10, 13, 16, 0.82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(24, 224, 255, 0.9), rgba(24, 224, 255, 0.35));
  color: #04202a; font-weight: 800; font-size: 18px;
  box-shadow: 0 0 22px rgba(24, 224, 255, 0.35);
}
.brand-text { font-size: 17px; font-weight: 700; letter-spacing: 0.5px; }
.brand-text em { font-style: normal; font-size: 12px; color: var(--muted); margin-left: 6px; font-weight: 400; }

.nav-links { display: flex; align-items: center; gap: 26px; font-size: 14px; }
.nav-links a { color: #c4ced6; transition: color 0.2s; }
.nav-links a:hover { color: var(--cyan); }

.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: #cfd8de; margin: 5px 0; border-radius: 2px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: transform 0.18s, box-shadow 0.25s, background 0.25s, border-color 0.25s;
}
.btn em { font-style: normal; font-size: 12px; opacity: 0.75; font-weight: 400; }
.btn-primary {
  background: linear-gradient(135deg, #24e6ff, #0aa8c9);
  color: #03222b;
  box-shadow: 0 8px 30px rgba(24, 224, 255, 0.28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 38px rgba(24, 224, 255, 0.42); }
.btn-line { border-color: var(--line-strong); color: var(--cyan-dim); }
.btn-line:hover { border-color: var(--cyan); color: #fff; background: rgba(24, 224, 255, 0.06); }
.btn-ghost { border-color: var(--line); padding: 9px 18px; font-size: 13px; color: #cfd8de; }
.btn-ghost:hover { border-color: var(--line-strong); color: var(--cyan); }

/* ============ 首屏 ============ */
.hero { position: relative; padding: 150px 0 90px; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(900px 520px at 78% 18%, rgba(24, 224, 255, 0.16), transparent 62%),
    radial-gradient(680px 460px at 12% 78%, rgba(255, 178, 66, 0.10), transparent 60%),
    linear-gradient(180deg, #0a0d10 0%, #0c1218 55%, #0a0d10 100%);
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(120% 80% at 50% 20%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(120% 80% at 50% 20%, #000 30%, transparent 78%);
}
.hero-inner {
  position: relative;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 54px; align-items: center;
}
.pill {
  display: inline-block; padding: 7px 16px; border-radius: 999px;
  border: 1px solid var(--line-strong); color: var(--cyan-dim);
  font-size: 13px; background: rgba(24, 224, 255, 0.06); margin-bottom: 22px;
}
.hero h1 { font-size: clamp(34px, 4.6vw, 58px); line-height: 1.18; letter-spacing: -0.5px; font-weight: 800; }
.grad {
  background: linear-gradient(100deg, #34e8ff 10%, #7fe6f7 45%, #ffd08a 95%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { margin-top: 22px; font-size: 17px; color: #a9b6c0; max-width: 34em; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }

.hero-facts { display: flex; gap: 40px; margin-top: 46px; list-style: none; flex-wrap: wrap; }
.hero-facts li { display: flex; flex-direction: column; }
.hero-facts b { font-size: 30px; font-weight: 800; color: var(--cyan); line-height: 1.2; text-shadow: 0 0 22px rgba(24, 224, 255, 0.4); }
.hero-facts span { font-size: 13px; color: var(--muted); }

.hero-art { position: relative; }
.hero-art img {
  border-radius: 20px; border: 1px solid var(--line);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
}
.hero-art-glow {
  position: absolute; inset: -14% -8% auto -8%; height: 60%;
  background: radial-gradient(closest-side, rgba(24, 224, 255, 0.22), transparent 70%);
  filter: blur(30px); z-index: -1;
}

/* ============ 通用区块 ============ */
.section { padding: 96px 0; position: relative; }
.section-dark { background: linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0)); border-top: 1px solid rgba(255, 255, 255, 0.05); border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
.sec-title { font-size: clamp(26px, 3vw, 38px); font-weight: 800; letter-spacing: -0.3px; }
.sec-sub { margin-top: 14px; color: var(--muted); font-size: 16px; max-width: 46em; }

/* ============ 全流程 ============ */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 46px; list-style: none; }
.flow-item {
  position: relative; padding: 26px 22px 24px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(24, 224, 255, 0.05), rgba(255, 255, 255, 0.012));
}
.flow-item::after {
  content: ""; position: absolute; right: -13px; top: 50%; width: 24px; height: 1px;
  background: linear-gradient(90deg, var(--line-strong), transparent);
}
.flow-item:last-child::after { display: none; }
.flow-no {
  font-size: 13px; font-weight: 700; color: var(--cyan);
  letter-spacing: 2px; opacity: 0.85;
}
.flow-item h3 { margin: 12px 0 8px; font-size: 19px; }
.flow-item p { font-size: 14px; color: #9fadb8; }

/* ============ 设备 ============ */
.products { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 46px; }
.product {
  display: grid; grid-template-columns: 0.85fr 1.15fr;
  border: 1px solid var(--line); border-radius: 20px; overflow: hidden;
  background: linear-gradient(160deg, rgba(24, 224, 255, 0.05), rgba(255, 255, 255, 0.012));
}
.product-alt { background: linear-gradient(160deg, rgba(255, 178, 66, 0.06), rgba(255, 255, 255, 0.012)); }
.product-media { position: relative; min-height: 240px; }
.product-media img { width: 100%; height: 100%; object-fit: cover; opacity: 0.92; }
.product-body { padding: 30px 28px; }
.tag {
  display: inline-block; font-size: 12px; padding: 4px 12px; border-radius: 999px;
  color: var(--cyan); border: 1px solid var(--line-strong); background: rgba(24, 224, 255, 0.07);
}
.tag-amber { color: var(--amber); border-color: rgba(255, 178, 66, 0.35); background: rgba(255, 178, 66, 0.08); }
.product h3 { margin: 14px 0 4px; font-size: 24px; }
.product h3 em { font-style: normal; font-size: 15px; color: var(--muted); margin-left: 8px; }
.product-note { font-size: 13px; color: var(--muted); margin-bottom: 16px; }

.checks { list-style: none; display: grid; gap: 10px; }
.checks li { position: relative; padding-left: 22px; font-size: 14.5px; color: #b9c5cd; }
.checks li::before {
  content: ""; position: absolute; left: 4px; top: 10px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan); box-shadow: 0 0 10px rgba(24, 224, 255, 0.8);
}
.product-alt .checks li::before { background: var(--amber); box-shadow: 0 0 10px rgba(255, 178, 66, 0.7); }
.soon {
  display: inline-block; margin-left: 6px; padding: 1px 8px; border-radius: 6px;
  font-size: 11px; color: #cbd5db; background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12); vertical-align: 1px;
}

/* ============ 能力卡片 ============ */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 46px; }
.card {
  padding: 26px 24px; border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.022), rgba(255, 255, 255, 0.008));
  transition: transform 0.2s, border-color 0.25s;
}
.card:hover { transform: translateY(-3px); border-color: var(--line-strong); }
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card h3::before {
  content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 2px;
  background: linear-gradient(135deg, var(--cyan), rgba(24, 224, 255, 0.3));
  margin-right: 10px; vertical-align: 1px;
}
.card p { font-size: 14px; color: #9fadb8; }

/* ============ 如何开始 ============ */
.start-wrap { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 46px; align-items: center; }
.steps { list-style: none; counter-reset: s; margin-top: 28px; display: grid; gap: 14px; }
.steps li { position: relative; padding-left: 42px; font-size: 16px; color: #c3cdd5; }
.steps li::before {
  counter-increment: s; content: counter(s);
  position: absolute; left: 0; top: 1px;
  width: 26px; height: 26px; border-radius: 50%;
  display: grid; place-items: center;
  font-size: 13px; font-weight: 700; color: var(--cyan);
  border: 1px solid var(--line-strong); background: rgba(24, 224, 255, 0.07);
}
.start-note { margin-top: 26px; font-size: 14px; color: var(--muted); border-left: 2px solid var(--line-strong); padding-left: 14px; }

.start-qr { text-align: center; }
.qr-slot {
  width: 190px; height: 190px; margin: 0 auto;
  border-radius: 16px; border: 1px dashed var(--line-strong);
  background: rgba(24, 224, 255, 0.05);
  display: grid; place-items: center;
}
.qr-hint { font-size: 13px; color: var(--muted); line-height: 1.8; }
.qr-hint em { font-style: normal; color: var(--amber); font-size: 12px; }
.start-qr p { margin-top: 14px; font-size: 13px; color: var(--muted); }

/* ============ 商务合作 ============ */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.contact-box {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 26px; background: rgba(24, 224, 255, 0.035);
}
.contact-row { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.06); font-size: 15px; }
.contact-row:last-child { border-bottom: 0; }
.contact-row span { color: var(--muted); }

/* ============ 页脚 ============ */
.footer { border-top: 1px solid rgba(255, 255, 255, 0.06); padding: 40px 0; background: #080b0e; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand b { font-size: 15px; }
.footer-brand p { font-size: 13px; color: var(--muted); }
.footer-links { display: flex; gap: 20px; font-size: 14px; color: #b3bfc8; }
.footer-links a:hover { color: var(--cyan); }
.footer-meta { font-size: 13px; color: #8a97a1; }

/* ============ 滚动出现 ============ */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============ 手机 ============ */
@media (max-width: 980px) {
  .hero { padding: 118px 0 70px; }
  .hero-inner { grid-template-columns: 1fr; gap: 36px; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow-item::after { display: none; }
  .products { grid-template-columns: 1fr; }
  .product { grid-template-columns: 1fr; }
  .product-media { min-height: 210px; }
  .cards { grid-template-columns: 1fr 1fr; }
  .start-wrap, .contact-wrap { grid-template-columns: 1fr; gap: 32px; }
  .section { padding: 72px 0; }
  .hero-facts { gap: 26px; }
}
@media (max-width: 700px) {
  .nav-links {
    position: fixed; inset: 68px 0 auto 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: rgba(10, 13, 16, 0.97); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    padding: 8px 6vw 20px; display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 0; width: 100%; border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
  .nav-links .btn { margin-top: 14px; border-bottom: 0; }
  .nav-toggle { display: block; }
  .flow { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .hero-facts b { font-size: 24px; }
}