/* 凤临网络官网 · 暗金玻璃风 */
:root {
  --bg: #0a0c12;
  --bg-2: #0d1017;
  --gold: #d8b25c;
  --gold-hi: #f3d58a;
  --gold-lo: #a97f2f;
  --gold-dim: rgba(216, 178, 92, .35);
  --line: rgba(216, 178, 92, .16);
  --text: #e9e6de;
  --muted: #9b978c;
  --glass: rgba(255, 255, 255, .035);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* ---------- 背景动效 ---------- */
.bg-fx { position: fixed; inset: 0; z-index: -1; overflow: hidden; background:
  radial-gradient(1200px 600px at 70% -10%, rgba(216,178,92,.07), transparent 60%),
  radial-gradient(900px 500px at 0% 100%, rgba(216,178,92,.05), transparent 60%),
  var(--bg); }
#dust { position: absolute; inset: 0; width: 100%; height: 100%; }
.blob { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .16; }
.blob-a { width: 46vw; height: 46vw; left: -12vw; top: -10vw; background: radial-gradient(circle, #d8b25c, transparent 70%); animation: drift 26s ease-in-out infinite alternate; }
.blob-b { width: 34vw; height: 34vw; right: -8vw; top: 24vh; background: radial-gradient(circle, #8f6db9, transparent 70%); opacity: .10; animation: drift 34s ease-in-out infinite alternate-reverse; }
.blob-c { width: 40vw; height: 40vw; left: 22vw; bottom: -18vw; background: radial-gradient(circle, #d8b25c, transparent 70%); animation: drift 30s ease-in-out infinite alternate; }
@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(6vw, 5vh, 0) scale(1.15); }
}
.vignette { position: absolute; inset: 0; background: radial-gradient(120% 90% at 50% 40%, transparent 55%, rgba(5,6,10,.75)); }

/* ---------- 导航 ---------- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 50; transition: background .35s, border-color .35s, backdrop-filter .35s; border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(10, 12, 18, .72); backdrop-filter: blur(14px); border-bottom-color: var(--line); }
.nav-inner { max-width: 1080px; margin: 0 auto; padding: 16px 24px; display: flex; align-items: center; justify-content: space-between; }
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-brand-text { font-family: var(--serif); letter-spacing: .22em; font-size: 17px; color: var(--gold-hi); }
.seal {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 8px;
  background: linear-gradient(145deg, #f0d492, #b3873c);
  color: #241a06; font-family: var(--serif); font-weight: 700; font-size: 19px;
  box-shadow: 0 0 0 1px rgba(243, 213, 138, .35), 0 4px 14px rgba(216, 178, 92, .25);
}
.seal-sm { width: 26px; height: 26px; font-size: 15px; border-radius: 6px; }
.nav-links { display: flex; align-items: center; gap: 26px; font-size: 14.5px; color: var(--muted); }
.nav-links a { transition: color .25s; letter-spacing: .08em; }
.nav-links a:hover, .nav-links a.active { color: var(--gold-hi); }
.nav-cta { padding: 7px 18px; border: 1px solid var(--gold-dim); border-radius: 999px; color: var(--gold-hi) !important; }
.nav-cta:hover { background: rgba(216, 178, 92, .1); }

/* ---------- Hero ---------- */
.hero { min-height: 100svh; display: flex; align-items: center; justify-content: center; position: relative; padding: 120px 24px 80px; }
.hero-inner { max-width: 760px; text-align: center; }
.hero-badge {
  display: inline-block; padding: 6px 18px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--glass); color: var(--gold); font-size: 13.5px; letter-spacing: .18em; margin-bottom: 30px;
}
.hero-title {
  font-family: var(--serif); font-size: clamp(56px, 11vw, 108px); font-weight: 700; letter-spacing: .16em;
  line-height: 1.15; text-indent: .16em;
  background: linear-gradient(180deg, #f8e7b4 8%, #d8b25c 55%, #a97f2f 96%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 6px 26px rgba(216, 178, 92, .28));
}
.hero-typing { margin-top: 18px; font-size: clamp(18px, 3vw, 24px); color: var(--text); letter-spacing: .3em; min-height: 1.6em; }
.caret { display: inline-block; width: 2px; height: 1.1em; background: var(--gold); margin-left: 6px; vertical-align: -0.15em; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero-desc { margin: 26px auto 0; max-width: 560px; color: var(--muted); font-size: 15.5px; }
.hero-cta { margin-top: 42px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn { padding: 13px 34px; border-radius: 999px; font-size: 15px; letter-spacing: .1em; transition: transform .25s, box-shadow .25s, background .25s; }
.btn-gold {
  background: linear-gradient(145deg, #f0d492, #b3873c); color: #241a06; font-weight: 600;
  box-shadow: 0 6px 22px rgba(216, 178, 92, .3);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(216, 178, 92, .42); }
.btn-ghost { border: 1px solid var(--gold-dim); color: var(--gold-hi); }
.btn-ghost:hover { background: rgba(216, 178, 92, .08); transform: translateY(-2px); }
.scroll-hint { position: absolute; left: 50%; bottom: 34px; width: 22px; height: 36px; transform: translateX(-50%); border: 1.5px solid var(--gold-dim); border-radius: 12px; }
.scroll-hint::after {
  content: ""; position: absolute; left: 50%; top: 7px; width: 3px; height: 7px; border-radius: 2px;
  background: var(--gold); transform: translateX(-50%); animation: hint 1.8s ease-in-out infinite;
}
@keyframes hint { 0% { opacity: 0; transform: translate(-50%, 0); } 35% { opacity: 1; } 100% { opacity: 0; transform: translate(-50%, 12px); } }

/* ---------- 数据条 ---------- */
.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(13, 16, 23, .5); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; padding: 40px 24px; }
.stat { text-align: center; }
.stat-num { font-family: var(--serif); font-size: clamp(30px, 4.2vw, 44px); color: var(--gold-hi); line-height: 1.2; }
.stat-num .suffix { font-size: .55em; margin-left: 2px; }
.stat-label { margin-top: 8px; color: var(--muted); font-size: 13.5px; letter-spacing: .06em; }

/* ---------- 通用 Section ---------- */
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.sec { padding: 96px 0; }
.sec-alt { background: rgba(13, 16, 23, .45); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { text-align: center; margin-bottom: 54px; }
.sec-kicker { color: var(--gold); font-size: 13px; letter-spacing: .34em; margin-bottom: 14px; }
.sec-title { font-family: var(--serif); font-size: clamp(28px, 4.6vw, 40px); letter-spacing: .12em; }
.sec-sub { margin-top: 14px; color: var(--muted); font-size: 15px; }

/* ---------- 业务卡 ---------- */
.biz-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.biz-card {
  position: relative; padding: 34px 28px 28px; border-radius: 16px; border: 1px solid var(--line);
  background: var(--glass); backdrop-filter: blur(8px); overflow: hidden;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.biz-card::before {
  content: ""; position: absolute; inset: 0; border-radius: 16px; pointer-events: none;
  background: radial-gradient(320px 160px at 80% 0%, rgba(216, 178, 92, .12), transparent 70%);
}
.biz-card:hover { transform: translateY(-5px); border-color: var(--gold-dim); box-shadow: 0 16px 40px rgba(0, 0, 0, .35); }
.biz-no { font-family: var(--serif); font-size: 15px; color: var(--gold); letter-spacing: .3em; margin-bottom: 16px; }
.biz-title { font-size: 20px; letter-spacing: .06em; margin-bottom: 12px; color: var(--gold-hi); }
.biz-desc { color: var(--muted); font-size: 14.5px; min-height: 5.2em; }
.biz-point { margin-top: 18px; padding-top: 14px; border-top: 1px dashed var(--line); color: var(--gold); font-size: 13px; letter-spacing: .12em; }

/* ---------- 产品卡 ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.prod-card {
  position: relative; display: flex; flex-direction: column; padding: 26px 24px 22px;
  border-radius: 16px; border: 1px solid var(--line); background: var(--glass);
  transition: transform .3s, border-color .3s, box-shadow .3s; overflow: hidden;
}
.prod-card::after {
  content: ""; position: absolute; top: 0; left: -70%; width: 45%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(243, 213, 138, .09), transparent);
  transform: skewX(-18deg); transition: left .6s ease; pointer-events: none;
}
.prod-card:hover::after { left: 125%; }
.prod-card:hover { transform: translateY(-5px); border-color: var(--gold-dim); box-shadow: 0 16px 40px rgba(0, 0, 0, .35); }
.prod-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.prod-name { font-size: 17.5px; letter-spacing: .04em; color: var(--text); }
.prod-tag { flex: none; font-size: 11.5px; color: var(--gold); border: 1px solid var(--line); padding: 2px 10px; border-radius: 999px; letter-spacing: .1em; }
.prod-desc { color: var(--muted); font-size: 14px; flex: 1; }

/* ---------- 关于 ---------- */
.about-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 44px; align-items: center; }
.about-text .sec-kicker { text-align: left; }
.about-text .sec-title { text-align: left; }
.about-text p { margin-top: 18px; color: var(--muted); font-size: 15px; }
.about-text .sec-title + p { margin-top: 22px; }
.about-pillars { display: flex; flex-direction: column; gap: 14px; }
.pillar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 18px 22px; border-radius: 14px; border: 1px solid var(--line); background: var(--glass);
  transition: border-color .3s, transform .3s;
}
.pillar:hover { border-color: var(--gold-dim); transform: translateX(4px); }
.pillar-name { font-family: var(--serif); font-size: 17px; color: var(--gold-hi); letter-spacing: .1em; }
.pillar-role { color: var(--muted); font-size: 13px; }

/* ---------- 创始人卡 ---------- */
.founder-card { display: flex; gap: 18px; align-items: center; margin-top: 26px; padding: 20px 22px; border-radius: 14px; border: 1px solid var(--line); background: var(--glass); }
.founder-avatar {
  flex: none; width: 56px; height: 56px; border-radius: 50%; overflow: hidden;
  background: linear-gradient(145deg, #f0d492, #b3873c);
  box-shadow: 0 0 0 1px rgba(243, 213, 138, .35), 0 4px 14px rgba(216, 178, 92, .25);
}
.founder-avatar img { display: block; width: 100%; height: 100%; object-fit: cover; }
.founder-name { color: var(--gold-hi); font-size: 16.5px; letter-spacing: .04em; }
.founder-role { color: var(--muted); font-size: 13px; margin-top: 6px; line-height: 1.7; }

/* ---------- 联系 ---------- */
.contact-wrap { text-align: center; }
.qr-card { display: inline-flex; flex-direction: column; align-items: center; gap: 16px; }
.qr-ring {
  padding: 10px; border-radius: 20px; background: linear-gradient(145deg, rgba(240, 212, 146, .9), rgba(169, 127, 47, .6));
  box-shadow: 0 14px 44px rgba(216, 178, 92, .22);
}
.qr-ring img { display: block; width: 220px; height: auto; border-radius: 12px; background: #fff; }
.qr-caption { color: var(--muted); letter-spacing: .2em; font-size: 14px; }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--line); background: rgba(10, 12, 18, .8); padding: 44px 0 36px; text-align: center; }
.footer-brand { display: flex; align-items: center; justify-content: center; gap: 10px; }
.footer-brand-link { font-family: var(--serif); color: var(--gold-hi); letter-spacing: .2em; font-size: 16px; }
.footer-company { color: var(--muted); font-size: 13px; letter-spacing: .1em; }
.footer-icp { margin-top: 18px; font-size: 13px; }
.footer-icp a { color: var(--muted); letter-spacing: .06em; border-bottom: 1px dotted var(--gold-dim); padding-bottom: 2px; }
.footer-icp a:hover { color: var(--gold-hi); }
.footer-copy { margin-top: 14px; color: #6d6a62; font-size: 12.5px; letter-spacing: .08em; }

/* ---------- 入场动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .biz-grid, .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 34px; }
}
@media (max-width: 640px) {
  .sec { padding: 68px 0; }
  .biz-grid, .prod-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 26px 10px; }
  .nav-inner { padding: 12px 16px; }
  .nav-links { gap: 16px; font-size: 13.5px; }
  .nav-brand-text { display: none; }
  .biz-desc { min-height: 0; }
  .hero { padding-top: 104px; }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .blob, .caret, .scroll-hint::after { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
}