/* ================= 全局 ================= */
:root {
  --green: #14453a;
  --green-dark: #0d332a;
  --gold: #b8892f;
  --cream: #f5f2ec;
  --line: #e4dfcf;
  --ink: #22302c;
  --muted: #6b7570;
  --white: #ffffff;
  --serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3, .serif { font-family: var(--serif); font-weight: 600; }

/* ================= 顶部导航 ================= */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(245, 242, 236, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--green); color: var(--cream);
  font-family: var(--serif); font-size: 18px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  letter-spacing: 1px;
}
.brand-name { font-family: var(--serif); font-size: 18px; font-weight: 600; color: var(--green); }
.brand-name small { display: block; font-family: var(--sans); font-size: 10px; font-weight: 400; color: var(--muted); letter-spacing: 2px; }

.nav-links { display: flex; gap: 8px; }
.nav-links a {
  padding: 8px 16px; border-radius: 8px;
  font-size: 15px; color: var(--ink); transition: all .2s;
}
.nav-links a:hover { color: var(--green); background: rgba(20, 69, 58, .06); }
.nav-links a.active { color: var(--green); font-weight: 600; position: relative; }
.nav-links a.active::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px;
  height: 2px; background: var(--gold); border-radius: 2px;
}
.nav-cta {
  background: var(--green) !important; color: var(--cream) !important;
  padding: 9px 22px !important; border-radius: 8px !important;
}
.nav-cta:hover { background: var(--green-dark) !important; }
.nav-cta.active::after { display: none; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--green); margin: 5px 0; transition: .3s; }

/* ================= Hero / 首屏 ================= */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, var(--green) 0%, var(--green-dark) 100%);
  color: var(--cream);
  padding: 110px 0 130px;
}
.hero::before {
  content: ""; position: absolute; right: -120px; top: -120px;
  width: 480px; height: 480px; border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 137, 47, .25), transparent 65%);
}
.hero::after {
  content: ""; position: absolute; left: -80px; bottom: -160px;
  width: 380px; height: 380px; border-radius: 50%;
  border: 1px solid rgba(245, 242, 236, .12);
}
.hero .wrap { position: relative; z-index: 1; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: 3px; color: var(--gold);
  border: 1px solid rgba(184, 137, 47, .4); border-radius: 999px;
  padding: 6px 18px; margin-bottom: 28px;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 56px); line-height: 1.3;
  letter-spacing: 2px; margin-bottom: 24px;
}
.hero h1 em { font-style: normal; color: var(--gold); }
.hero p { max-width: 560px; font-size: 17px; color: rgba(245, 242, 236, .8); margin-bottom: 40px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 32px; border-radius: 8px; font-size: 15px;
  transition: all .25s; cursor: pointer;
}
.btn-primary { background: var(--gold); color: var(--white); }
.btn-primary:hover { background: #a17a28; transform: translateY(-2px); }
.btn-ghost { border: 1px solid rgba(245, 242, 236, .4); color: var(--cream); }
.btn-ghost:hover { border-color: var(--cream); background: rgba(245, 242, 236, .08); }
.btn-outline { border: 1px solid var(--green); color: var(--green); }
.btn-outline:hover { background: var(--green); color: var(--cream); }

/* ================= 区块通用 ================= */
.section { padding: 90px 0; }
.section.alt { background: var(--white); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-head .kicker {
  font-size: 13px; letter-spacing: 4px; color: var(--gold);
  text-transform: uppercase; display: block; margin-bottom: 12px;
}
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); color: var(--green); letter-spacing: 2px; }
.section-head p { color: var(--muted); margin-top: 14px; }

/* ================= 卡片 ================= */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--white); border: 1px solid var(--line);
  border-radius: 14px; padding: 36px 30px;
  transition: all .3s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(20, 69, 58, .1); }
.card .icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: rgba(20, 69, 58, .07); color: var(--green);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 20px;
}
.card h3 { font-size: 19px; color: var(--green); margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--muted); }

/* 数字统计 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-num { font-family: var(--serif); font-size: 42px; color: var(--green); font-weight: 700; }
.stat-num span { color: var(--gold); }
.stat-label { font-size: 14px; color: var(--muted); margin-top: 4px; }

/* ================= 订阅方案 ================= */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.plan {
  background: var(--white); border: 1px solid var(--line); border-radius: 16px;
  padding: 40px 32px; display: flex; flex-direction: column; position: relative;
  transition: all .3s;
}
.plan:hover { transform: translateY(-6px); box-shadow: 0 20px 48px rgba(20, 69, 58, .12); }
.plan.featured { border: 2px solid var(--gold); background: linear-gradient(180deg, #fffdf8, var(--white)); }
.plan-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--gold); color: var(--white); font-size: 12px; letter-spacing: 2px;
  padding: 5px 18px; border-radius: 999px; white-space: nowrap;
}
.plan-tier { font-size: 13px; letter-spacing: 3px; color: var(--gold); margin-bottom: 6px; }
.plan h3 { font-size: 22px; color: var(--green); margin-bottom: 6px; }
.plan-target { font-size: 13.5px; color: var(--muted); margin-bottom: 20px; min-height: 42px; }
.plan-price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 24px; }
.plan-price strong { font-family: var(--serif); font-size: 40px; color: var(--green); font-weight: 700; }
.plan-price em { font-style: normal; color: var(--muted); font-size: 14px; }
.plan ul { flex: 1; margin-bottom: 28px; }
.plan li {
  position: relative; padding: 7px 0 7px 26px;
  font-size: 14.5px; color: var(--ink);
}
.plan li::before {
  content: "✓"; position: absolute; left: 0; top: 7px;
  color: var(--gold); font-weight: 700;
}
.plan li.no { color: #b3ab99; }
.plan li.no::before { content: "—"; color: #c9c2b0; }
.plan .btn { justify-content: center; }

/* ================= 表格 ================= */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th, td { padding: 16px 24px; text-align: left; font-size: 14.5px; }
thead th {
  background: var(--green); color: var(--cream); font-family: var(--serif);
  font-weight: 600; letter-spacing: 1px;
}
tbody tr + tr { border-top: 1px solid var(--line); }
tbody td:first-child { color: var(--green); font-weight: 600; white-space: nowrap; }
tbody td:last-child { color: var(--muted); }

/* ================= 条款清单 ================= */
.terms { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; counter-reset: term; }
.term-item {
  background: var(--white); border: 1px solid var(--line); border-radius: 12px;
  padding: 26px 26px 26px 74px; position: relative;
}
.term-item::before {
  counter-increment: term; content: counter(term, decimal-leading-zero);
  position: absolute; left: 26px; top: 26px;
  font-family: var(--serif); font-size: 20px; color: var(--gold); font-weight: 700;
}
.term-item h4 { font-size: 16px; color: var(--green); margin-bottom: 6px; }
.term-item p { font-size: 13.5px; color: var(--muted); }

/* ================= 联系页 ================= */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.contact-card {
  background: var(--white); border: 1px solid var(--line); border-radius: 16px;
  padding: 44px 40px;
}
.contact-row { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.contact-row:last-child { border-bottom: none; }
.contact-row .c-icon {
  width: 46px; height: 46px; border-radius: 12px; flex: none;
  background: rgba(20, 69, 58, .07); color: var(--green);
  display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.contact-row h4 { font-size: 14px; color: var(--muted); font-weight: 500; margin-bottom: 2px; }
.contact-row p { font-size: 17px; color: var(--green); font-weight: 600; font-family: var(--serif); }
.contact-row p small { display: block; font-family: var(--sans); font-size: 13px; color: var(--muted); font-weight: 400; }
.qr-panel {
  text-align: center; background: var(--green); color: var(--cream);
  border-radius: 16px; padding: 48px 40px;
}
.qr-panel img {
  width: 240px; height: 240px; object-fit: cover; border-radius: 12px;
  margin: 0 auto 24px; background: var(--white); padding: 8px;
}
.qr-panel h3 { font-size: 20px; margin-bottom: 8px; }
.qr-panel p { font-size: 14px; color: rgba(245, 242, 236, .75); }

/* ================= CTA 条 ================= */
.cta-band { background: var(--green); color: var(--cream); padding: 72px 0; text-align: center; }
.cta-band h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 12px; }
.cta-band p { color: rgba(245, 242, 236, .75); margin-bottom: 32px; }

/* ================= 页脚 ================= */
.site-footer { background: var(--green-dark); color: rgba(245, 242, 236, .65); padding: 56px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 44px; }
.footer-grid h4 { color: var(--cream); font-size: 15px; margin-bottom: 16px; font-family: var(--serif); }
.footer-grid a { display: block; padding: 5px 0; font-size: 14px; transition: color .2s; }
.footer-grid a:hover { color: var(--gold); }
.footer-brand p { font-size: 14px; margin-top: 14px; max-width: 320px; }
.footer-bottom {
  border-top: 1px solid rgba(245, 242, 236, .12);
  padding: 20px 0; font-size: 13px; text-align: center;
}

/* 页面内页 hero */
.page-hero {
  background: linear-gradient(160deg, var(--green), var(--green-dark));
  color: var(--cream); padding: 76px 0; text-align: center;
}
.page-hero h1 { font-size: clamp(30px, 4vw, 44px); letter-spacing: 3px; }
.page-hero p { margin-top: 12px; color: rgba(245, 242, 236, .75); font-size: 16px; }
.page-hero .kicker { color: var(--gold); letter-spacing: 4px; font-size: 13px; display: block; margin-bottom: 14px; }

/* 关于页时间线 / 价值观 */
.value-item { text-align: center; }
.value-item .icon { margin: 0 auto 18px; }
.timeline { position: relative; max-width: 720px; margin: 0 auto; padding-left: 32px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px;
  width: 2px; background: var(--line);
}
.tl-item { position: relative; padding-bottom: 36px; }
.tl-item::before {
  content: ""; position: absolute; left: -31px; top: 8px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--gold); border: 3px solid var(--cream);
}
.tl-item h4 { font-family: var(--serif); color: var(--green); font-size: 17px; }
.tl-item .tl-date { font-size: 13px; color: var(--gold); letter-spacing: 1px; margin-bottom: 4px; }
.tl-item p { font-size: 14.5px; color: var(--muted); }

/* ================= 动画 ================= */
.reveal { opacity: 0; transform: translateY(24px); transition: all .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ================= 响应式 ================= */
@media (max-width: 900px) {
  .grid-3, .grid-4, .plans, .terms { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; gap: 32px; }
  .contact-grid, .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .grid-3, .grid-4, .grid-2, .plans, .terms { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .hero { padding: 80px 0 90px; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; background: var(--white);
    border-bottom: 1px solid var(--line); padding: 12px 24px 20px; gap: 4px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 8px; }
}