/* 岩值官网共用样式 */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --navy: #16305e;
  --ink: #1f2937;
  --sub: #6b7280;
  --line: #e5e7eb;
  --bg: #f6f8fb;
  --gold: #b45309;
  --gold-bg: #fffbeb;
  --ok: #15803d;
}

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

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.75;
  font-size: 16px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶栏 ---------- */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
.nav {
  display: flex; align-items: center; gap: 28px;
  height: 62px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 700; color: var(--navy);
  letter-spacing: 1px; margin-right: auto;
}
.logo img { height: 34px; width: auto; display: block; }
.logo small { font-size: 12px; font-weight: 400; color: var(--sub); margin-left: 2px; letter-spacing: 0; }
a.logo:hover { text-decoration: none; opacity: 0.85; }
.nav a.item { color: var(--ink); font-size: 15px; }
.nav a.item:hover { color: var(--primary); text-decoration: none; }
.nav .btn-download {
  background: var(--primary); color: #fff; padding: 8px 18px; border-radius: 8px;
}
.nav .btn-download:hover { background: var(--primary-dark); text-decoration: none; }

/* ---------- 首屏（浅色） ---------- */
.hero {
  background:
    radial-gradient(1200px 420px at 50% -140px, #dbeafe 0%, rgba(219, 234, 254, 0) 70%),
    #fafbfd;
  color: var(--ink);
  padding: 72px 0 84px; text-align: center;
  border-bottom: 1px solid var(--line);
}
.hero .hero-logo { height: 84px; width: auto; margin-bottom: 18px; }
.hero h1 {
  font-size: 46px; font-weight: 800; letter-spacing: 10px; text-indent: 10px;
  margin-bottom: 16px;
  background: linear-gradient(120deg, #16305e 35%, #2563eb 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: var(--navy);
}
.hero .slogan {
  font-size: 23px; font-weight: 600; color: #2c3e5d;
  letter-spacing: 3px; margin-bottom: 16px;
}
.hero p.sub {
  font-size: 15px; color: #8393a9; letter-spacing: 2px; margin-bottom: 38px;
  display: flex; align-items: center; justify-content: center; gap: 16px;
}
.hero p.sub::before,
.hero p.sub::after {
  content: ""; width: 42px; height: 1px; background: #c9d4e3; flex: none;
}
.hero .actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero .btn {
  padding: 13px 34px; border-radius: 9px; font-size: 16px; display: inline-block;
}
.hero .btn-main { background: var(--primary); color: #fff; font-weight: 600; }
.hero .btn-ghost { border: 1px solid #c3cfdf; color: var(--navy); background: #fff; }
.hero .btn:hover { text-decoration: none; opacity: 0.92; }
.hero .tip { margin-top: 14px; font-size: 13px; color: var(--sub); }

/* 首屏下载区（无外框） */
.dl-panel {
  max-width: 720px; margin: 30px auto 0; padding: 0;
}
.dl-panel .dl-meta { font-size: 13px; color: var(--sub); }
.dl-panel .dl-btns { display: flex; gap: 34px; justify-content: center; flex-wrap: wrap; }
.dl-item { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.dl-panel .btn {
  padding: 15px 44px; border-radius: 999px; font-size: 16px; font-weight: 600;
  display: inline-block; border: 1px solid transparent;
  transition: all 0.15s ease;
}
.dl-panel .btn-main {
  background: var(--primary); color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.28);
}
.dl-panel .btn-main:hover {
  background: var(--primary-dark); text-decoration: none;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.34);
}
.dl-panel .btn-ghost,
.dl-panel .btn-price {
  background: #fff; border-color: #d3dce8; color: var(--navy);
}
.dl-panel .btn-ghost:hover,
.dl-panel .btn-price:hover {
  border-color: var(--primary); color: var(--primary); background: #f5f9ff;
  text-decoration: none;
}

/* 价格两列对比 */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: stretch; }
.compare-card {
  background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 32px 30px;
}
.compare-card.pro { border: 2px solid var(--primary); box-shadow: 0 10px 30px rgba(37, 99, 235, 0.1); }
.compare-card h3 { font-size: 20px; color: var(--navy); display: flex; align-items: center; gap: 10px; }
.mini-badge {
  background: var(--primary); color: #fff; font-size: 12px; font-weight: 400;
  padding: 2px 12px; border-radius: 999px;
}
.compare-card .price { font-size: 36px; font-weight: 700; color: var(--navy); margin: 12px 0 4px; }
.compare-card .price small { font-size: 14px; font-weight: 400; color: var(--sub); }
.cmp-sub { font-size: 13.5px; color: var(--sub); margin-bottom: 16px; }
.cmp-list { list-style: none; font-size: 14.5px; color: #374151; }
.cmp-list li { padding: 7px 0 7px 24px; position: relative; border-bottom: 1px dashed #eef1f5; }
.cmp-list li::before {
  content: "✓"; position: absolute; left: 2px; color: var(--ok); font-weight: 700;
}
.cmp-list li.hot {
  color: var(--navy); font-weight: 700; background: var(--gold-bg);
  border-radius: 8px; border-bottom: none; margin-top: 4px;
}
.cmp-list li.hot::before { content: "★"; color: var(--gold); }
.pro-prices {
  display: flex; gap: 34px; align-items: baseline;
  margin: 20px 0 6px; padding: 0 2px; flex-wrap: wrap;
}
.pro-prices div { display: flex; align-items: baseline; gap: 8px; }
.pro-prices span { font-size: 14px; color: var(--sub); }
.pro-prices b { font-size: 21px; color: var(--navy); }
.cmp-note { font-size: 13px; color: var(--sub); margin-top: 16px; }
.tier {
  display: flex; align-items: baseline; gap: 12px;
  padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; margin-bottom: 10px;
}
.tier span { font-size: 15px; color: var(--ink); width: 44px; }
.tier b { font-size: 22px; color: var(--navy); }
.tier i { font-style: normal; font-size: 12.5px; color: var(--sub); }
.tier.hot { border-color: var(--primary); background: #f5f9ff; }
.tier.hot::after {
  content: "推荐选择"; margin-left: auto; font-size: 12px; color: var(--primary);
  border: 1px solid var(--primary); border-radius: 999px; padding: 1px 10px;
}
.btn-buy-one {
  display: block; text-align: center; background: var(--primary); color: #fff;
  padding: 12px 0; border-radius: 9px; font-size: 16px; font-weight: 600; margin-top: 18px;
}
.btn-buy-one:hover { text-decoration: none; background: var(--primary-dark); }

/* ---------- 通用区块 ---------- */
section.block { padding: 64px 0; }
section.block.alt { background: var(--bg); }
.block h2 { font-size: 28px; color: var(--navy); text-align: center; margin-bottom: 10px; }
.block p.lead { color: var(--sub); text-align: center; margin-bottom: 44px; }

/* 功能九宫格 */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 26px 24px;
}
.card h3 { font-size: 17px; margin-bottom: 8px; color: var(--navy); }
.card h3 svg { vertical-align: -3px; margin-right: 8px; color: var(--primary); }
.card h3 svg.pro-icon { color: var(--gold); }

/* 截图 */
.shot-wrap { margin-top: -58px; position: relative; z-index: 5; }
.shot-main {
  width: 100%; display: block; border-radius: 12px;
  border: 1px solid var(--line);
  box-shadow: 0 18px 45px rgba(22, 48, 94, 0.16);
}
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.shot-cell { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.shot-cell img { width: 100%; display: block; border-radius: 8px; border: 1px solid var(--line); cursor: zoom-in; transition: box-shadow 0.15s; }
.shot-cell img:hover { box-shadow: 0 6px 18px rgba(22, 48, 94, 0.15); }
.shot-cell p { font-size: 13px; color: var(--sub); text-align: center; margin-top: 10px; }
.duo .shot { width: 100%; border-radius: 10px; border: 1px solid var(--line); margin-top: 16px; display: block; cursor: zoom-in; }

/* 点击看大图 */
.lightbox {
  display: none; position: fixed; inset: 0; z-index: 100;
  background: rgba(15, 25, 40, 0.82);
  align-items: center; justify-content: center; padding: 28px;
  cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 100%; max-height: 100%;
  border-radius: 10px; box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
}
.lightbox .hint {
  position: absolute; top: 14px; left: 0; right: 0; text-align: center;
  color: rgba(255, 255, 255, 0.75); font-size: 13px;
}
.card p { font-size: 14px; color: var(--sub); }
.card .tag {
  display: inline-block; font-size: 12px; padding: 2px 10px; border-radius: 999px;
  margin-bottom: 12px;
}
.tag.free { background: #ecfdf5; color: var(--ok); }
.tag.pro { background: var(--gold-bg); color: var(--gold); }

/* 两个付费功能 */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.duo .card h3 { display: flex; align-items: center; gap: 8px; }
.duo ul { margin: 12px 0 0 18px; }
.duo li { font-size: 14px; color: var(--sub); margin-bottom: 6px; }
.notice {
  margin-top: 20px; background: #f0f6ff; border: 1px solid #c7dbf7;
  border-radius: 10px; padding: 18px 22px; font-size: 14px; color: #274b8f;
}
.notice b { display: block; margin-bottom: 6px; }

/* 定价 */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.price-card {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 34px 28px; text-align: center; position: relative;
}
.price-card.reco { border: 2px solid var(--primary); box-shadow: 0 10px 30px rgba(37, 99, 235, 0.12); }
.price-card .reco-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff; font-size: 13px;
  padding: 4px 18px; border-radius: 999px;
}
.price-card h3 { font-size: 18px; color: var(--navy); }
.price-card .price { font-size: 40px; font-weight: 700; color: var(--navy); margin: 14px 0 2px; }
.price-card .price small { font-size: 15px; font-weight: 400; color: var(--sub); }
.price-card .per { font-size: 13px; color: var(--sub); margin-bottom: 16px; }
.price-card ul { list-style: none; font-size: 14px; color: var(--sub); margin-bottom: 22px; }
.price-card li { margin-bottom: 8px; }
.price-card .btn-buy {
  display: block; padding: 11px 0; border-radius: 8px; font-size: 15px;
  border: 1px solid var(--primary); color: var(--primary);
}
.price-card.reco .btn-buy { background: var(--primary); color: #fff; font-weight: 600; }
.price-card .btn-buy:hover { text-decoration: none; opacity: 0.92; }
.price-note { text-align: center; color: var(--sub); font-size: 14px; margin-top: 30px; }

/* 下载卡（浅色） */
.downloads { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.download-card {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 34px 40px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  box-shadow: 0 6px 22px rgba(22, 48, 94, 0.06);
}
.download-card h3 { font-size: 20px; color: var(--navy); margin-bottom: 4px; }
.download-card p { font-size: 14px; color: var(--sub); }
.download-card .btn {
  background: var(--primary); color: #fff; padding: 12px 32px; border-radius: 8px;
  font-weight: 600; white-space: nowrap;
}
.download-card .btn:hover { text-decoration: none; opacity: 0.92; }

/* 页脚 */
footer.site {
  background: #24303f; color: #c6cfd9; padding: 36px 0 28px; margin-top: 40px;
  font-size: 13px;
}
footer.site .cols { display: flex; gap: 60px; flex-wrap: wrap; margin-bottom: 22px; }
footer.site h4 { color: #fff; font-size: 14px; margin-bottom: 10px; }
footer.site a { color: #c6cfd9; }
footer.site .copyright { border-top: 1px solid rgba(255, 255, 255, 0.15); padding-top: 18px; opacity: 0.7; }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--line); padding: 20px 0; }
.faq-item h3 { font-size: 16px; color: var(--navy); margin-bottom: 8px; }
.faq-item p { font-size: 14.5px; color: var(--sub); }

/* 步骤 */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; }
.step { text-align: center; padding: 24px 18px; background: #fff; border: 1px solid var(--line); border-radius: 12px; }
.step .no {
  width: 34px; height: 34px; line-height: 34px; border-radius: 50%;
  background: var(--primary); color: #fff; font-weight: 700; margin: 0 auto 12px;
}
.step h3 { font-size: 16px; margin-bottom: 6px; color: var(--navy); }
.step p { font-size: 13.5px; color: var(--sub); }

.pending {
  display: inline-block; background: var(--gold-bg); color: var(--gold);
  font-size: 13px; padding: 3px 12px; border-radius: 999px;
}

@media (max-width: 860px) {
  .grid-3, .pricing, .steps, .shots, .downloads, .compare { grid-template-columns: 1fr; }
  .duo { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .nav a.item { display: none; }
}