/* 可能无限大 · 官网样式
 * 视觉基准：黄小璨AI-视觉品牌规范 v1（暖黄底 + 白卡 + 金色点睛 + 墨黑字）
 * 色值照抄规范，勿各跑各的。
 */

:root {
  --gold: #F5D060;          /* 主色·金：点睛小标签/高亮 */
  --deep-gold: #C9A03D;     /* 深金：金色文字/描边 */
  --ink-gold: #8A6B1F;      /* 墨金：最深强调 */
  --warm-1: #F7E289;        /* 暖黄渐变起 */
  --warm-2: #FBEFB6;        /* 暖黄渐变中 */
  --warm-3: #F9E9A6;        /* 暖黄渐变止 */
  --soft-gold: #FFF8E1;     /* 柔金：次级底 */
  --card: #FFFFFF;
  --ink: #1D1D1F;           /* 主文字·墨 */
  --gray: #6E6E73;          /* 次要文字 */
  --gray-2: #A1A1A6;        /* 辅助文字 */
  --line: #E8E8ED;
  --gold-line: rgba(201, 160, 61, .28);
  --shadow: 0 14px 38px rgba(120, 90, 20, .10);
  --radius: 24px;
  --max: 1080px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", -apple-system, "Helvetica Neue", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: #FFFDF5;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--deep-gold); text-decoration: none; }
a:hover { color: var(--ink-gold); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 253, 245, .86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-nav .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 19px; color: var(--ink);
}
.brand .dot {
  width: 26px; height: 26px; border-radius: 8px;
  background: linear-gradient(135deg, var(--warm-1), var(--gold));
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 15px; color: var(--ink-gold); font-weight: 800;
  box-shadow: inset 0 0 0 1.5px var(--gold-line);
}
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a {
  color: var(--ink); font-size: 15px; font-weight: 500;
  padding: 6px 2px; border-bottom: 2px solid transparent;
}
.nav-links a:hover { color: var(--ink-gold); }
.nav-links a.active { border-bottom-color: var(--gold); color: var(--ink); font-weight: 700; }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; padding: 8px;
}
.nav-toggle span {
  display: block; height: 2px; background: var(--ink);
  margin: 5px 0; border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--warm-1) 0%, var(--warm-2) 48%, var(--warm-3) 100%);
  padding: 96px 0 88px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "∞";
  position: absolute; right: -40px; bottom: -120px;
  font-size: 420px; font-weight: 800;
  color: rgba(201, 160, 61, .07);
  pointer-events: none; line-height: 1;
}
.kicker {
  display: inline-block;
  background: var(--gold);
  color: var(--ink-gold);
  font-size: 13px; font-weight: 700; letter-spacing: .08em;
  padding: 5px 14px; border-radius: 999px;
  margin-bottom: 26px;
}
.hero h1 {
  font-size: 46px; font-weight: 800; line-height: 1.3;
  letter-spacing: .01em; max-width: 760px;
  position: relative; z-index: 1;
}
.hero .sub {
  margin-top: 22px; font-size: 17px; color: #4c4a42;
  max-width: 640px; position: relative; z-index: 1;
}
.hero .actions { margin-top: 38px; display: flex; gap: 16px; flex-wrap: wrap; position: relative; z-index: 1; }

.btn {
  display: inline-block; padding: 13px 30px; border-radius: 999px;
  font-size: 15px; font-weight: 700; transition: transform .15s ease, box-shadow .15s ease;
}
.btn-primary {
  background: var(--ink); color: #FFF8E1;
}
.btn-primary:hover { color: var(--gold); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-ghost {
  background: rgba(255, 255, 255, .72); color: var(--ink);
  box-shadow: inset 0 0 0 1.5px var(--gold-line);
}
.btn-ghost:hover { color: var(--ink-gold); transform: translateY(-1px); box-shadow: var(--shadow); }

/* ---------- 区块通用 ---------- */
.section { padding: 76px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-head { max-width: 680px; margin-bottom: 44px; }
.section-head .en {
  font-size: 13px; font-weight: 700; letter-spacing: .18em;
  color: var(--deep-gold); text-transform: uppercase; margin-bottom: 10px;
}
.section-head h2 { font-size: 32px; font-weight: 800; line-height: 1.35; }
.section-head p { margin-top: 14px; color: var(--gray); font-size: 16px; }

/* ---------- 卡片 ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--card); border-radius: var(--radius);
  padding: 34px 30px; box-shadow: var(--shadow);
  border: 1px solid rgba(232, 232, 237, .8);
  display: flex; flex-direction: column;
}
.card .no {
  font-size: 14px; font-weight: 800; color: var(--deep-gold);
  letter-spacing: .1em; margin-bottom: 14px;
}
.card h3 { font-size: 20px; font-weight: 800; margin-bottom: 12px; }
.card p { color: var(--gray); font-size: 15px; flex: 1; }
.card .more {
  margin-top: 20px; font-size: 14px; font-weight: 700; color: var(--deep-gold);
}
.card .more::after { content: " →"; }

/* ---------- 数字带 ---------- */
.numbers {
  background: linear-gradient(160deg, var(--warm-1), var(--warm-2) 55%, var(--warm-3));
  border-radius: 32px; padding: 54px 48px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.number .n { font-size: 46px; font-weight: 800; color: var(--ink); }
.number .n em { font-style: normal; color: var(--ink-gold); font-size: 22px; font-weight: 700; margin-left: 4px; }
.number .d { margin-top: 8px; color: #57543f; font-size: 15px; font-weight: 500; }
.numbers-note { margin-top: 18px; color: var(--gray-2); font-size: 13px; }

/* ---------- 创始人条 ---------- */
.founder {
  display: grid; grid-template-columns: 120px 1fr; gap: 34px; align-items: center;
  background: var(--card); border-radius: 32px; box-shadow: var(--shadow);
  padding: 42px 46px; border: 1px solid rgba(232, 232, 237, .8);
}
.founder .avatar {
  width: 120px; height: 120px; border-radius: 50%;
  background: linear-gradient(135deg, var(--warm-1), var(--gold));
  display: flex; align-items: center; justify-content: center;
  font-size: 40px; font-weight: 800; color: var(--ink-gold);
  box-shadow: inset 0 0 0 2px var(--gold-line);
}
.founder h3 { font-size: 22px; font-weight: 800; }
.founder .title { color: var(--deep-gold); font-weight: 600; font-size: 14px; margin: 6px 0 12px; }
.founder p { color: var(--gray); font-size: 15px; }

/* ---------- 列表块（关于页/服务页） ---------- */
.block {
  background: var(--card); border-radius: var(--radius);
  box-shadow: var(--shadow); border: 1px solid rgba(232, 232, 237, .8);
  padding: 38px 40px; margin-bottom: 22px;
}
.block h3 { font-size: 20px; font-weight: 800; margin-bottom: 14px; }
.block h3 .tag {
  display: inline-block; vertical-align: 3px; margin-left: 10px;
  font-size: 12px; font-weight: 700; color: var(--ink-gold);
  background: var(--soft-gold); border: 1px solid var(--gold-line);
  padding: 2px 10px; border-radius: 999px;
}
.block p, .block li { color: var(--gray); font-size: 15px; }
.block ul { padding-left: 20px; margin-top: 8px; }
.block li + li { margin-top: 6px; }
.block .who { margin-top: 16px; font-size: 14px; color: var(--ink); font-weight: 600; }
.block .who::before { content: "适合谁："; color: var(--deep-gold); }

.mvv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.mvv .cell {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  border: 1px solid rgba(232, 232, 237, .8); padding: 30px 28px;
}
.mvv .cell .k {
  font-size: 13px; font-weight: 700; letter-spacing: .14em; color: var(--deep-gold);
  margin-bottom: 10px;
}
.mvv .cell .v { font-size: 17px; font-weight: 700; line-height: 1.6; }

/* ---------- CTA 带 ---------- */
.cta-band {
  background: linear-gradient(160deg, var(--warm-1), var(--warm-2) 55%, var(--warm-3));
  border-radius: 32px; padding: 56px 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
}
.cta-band h2 { font-size: 26px; font-weight: 800; }
.cta-band p { color: #57543f; margin-top: 8px; font-size: 15px; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 22px; align-items: start; }
.contact-list { list-style: none; }
.contact-list li {
  display: flex; gap: 16px; padding: 18px 0;
  border-bottom: 1px solid var(--line); align-items: baseline;
}
.contact-list li:last-child { border-bottom: none; }
.contact-list .k { flex: 0 0 96px; font-weight: 700; font-size: 15px; }
.contact-list .val { color: var(--gray); font-size: 15px; word-break: break-all; }
.contact-list .val b { color: var(--ink); }

/* 待填占位：上线前必须替换为真实信息 */
.fill {
  background: var(--soft-gold); border: 1px dashed var(--deep-gold);
  color: var(--ink-gold); border-radius: 8px; padding: 1px 8px;
  font-size: .92em; font-weight: 600;
}

.note-card {
  background: var(--soft-gold); border: 1px solid var(--gold-line);
  border-radius: var(--radius); padding: 28px 30px;
}
.note-card h3 { font-size: 16px; font-weight: 800; margin-bottom: 10px; }
.note-card p { color: var(--gray); font-size: 14px; }

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: 40px; border-top: 1px solid var(--line);
  background: #FBF7E8; padding: 44px 0 34px;
}
.site-footer .cols {
  display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.site-footer .f-brand { font-weight: 800; font-size: 17px; }
.site-footer .f-brand small { display: block; font-weight: 500; color: var(--gray); font-size: 13px; margin-top: 6px; }
.site-footer .f-links { display: flex; gap: 22px; list-style: none; font-size: 14px; }
.site-footer .f-links a { color: var(--gray); }
.site-footer .f-links a:hover { color: var(--ink-gold); }
.site-footer .legal {
  margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--line);
  color: var(--gray-2); font-size: 13px; text-align: center; line-height: 2;
}
.site-footer .legal a { color: var(--gray); }

/* ---------- 页头（二级页） ---------- */
.page-head {
  background: linear-gradient(160deg, var(--warm-1), var(--warm-2) 55%, var(--warm-3));
  padding: 64px 0 52px;
}
.page-head h1 { font-size: 36px; font-weight: 800; margin-top: 14px; }
.page-head p { margin-top: 14px; color: #4c4a42; max-width: 640px; font-size: 16px; }

/* ---------- 移动端 ---------- */
@media (max-width: 860px) {
  .hero { padding: 64px 0 60px; }
  .hero h1 { font-size: 28px; }
  .hero h1 br { display: none; }
  .section { padding: 56px 0; }
  .section-head h2 { font-size: 25px; }
  .page-head h1 { font-size: 28px; }
  .number .n { font-size: 34px; }
  .cta-band h2 { font-size: 22px; }
  .cards, .cards.two, .mvv { grid-template-columns: 1fr; }
  .numbers { grid-template-columns: 1fr; padding: 40px 30px; gap: 18px; }
  .founder { grid-template-columns: 1fr; padding: 32px 26px; text-align: left; }
  .contact-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 40px 30px; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: #FFFDF5; flex-direction: column; gap: 0;
    border-bottom: 1px solid var(--line); padding: 8px 24px 16px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; padding: 12px 2px; border-bottom: 1px solid var(--line); }
  .nav-links li:last-child a { border-bottom: none; }
  .site-nav { position: sticky; }
  .site-nav .wrap { position: relative; }
}