/* 品信恒业官网 · 公共样式 */
:root {
  --gold: #E8B14A;
  --gold-bright: #FFE9A8;
  --gold-deep: #8B5A14;
  --ink: #0A0A0D;
  --navy: #16324f;
  --blue: #2f6fdb;
  --text: #2b333d;
  --text-sub: #6b7684;
  --line: #e6eaef;
  --bg: #f7f9fb;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--text); background: var(--bg); line-height: 1.7; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

header { position: sticky; top: 0; z-index: 100; background: rgba(245,240,228,.96); backdrop-filter: blur(8px); border-bottom: 1px solid #e5dcc8; }
.nav { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.nav img.mark { height: 32px; }
.nav .links { display: flex; align-items: center; }
.nav .links a { color: #5c4d2e; text-decoration: none; margin-left: 26px; font-size: 14px; }
.nav .links a:hover { color: var(--gold-deep); }
.nav .cta { background: var(--gold); color: var(--ink) !important; padding: 7px 18px; border-radius: 6px; font-weight: 600; }
.nav .dropdown { position: relative; }
.nav .dropdown-menu { display: none; position: absolute; top: 100%; left: 10px; background: #fdfaf2; border: 1px solid #e5dcc8; border-radius: 8px; padding: 8px 0; min-width: 260px; box-shadow: 0 8px 24px rgba(90,70,20,.12); }
.nav .dropdown:hover .dropdown-menu { display: block; }
.nav .dropdown-menu a { display: block; margin: 0; padding: 9px 18px; font-size: 13px; }
.nav .dropdown-menu a small { color: #a0906c; display: block; }

.hero { background: radial-gradient(ellipse 80% 60% at 50% -10%, #1d2230 0%, var(--ink) 60%); color: #fff; padding: 84px 0 72px; text-align: center; }
.hero img.logo { width: 92px; margin-bottom: 22px; }
.hero h1 { font-size: 38px; font-weight: 700; letter-spacing: 2px; }
.hero h1 em { font-style: normal; color: var(--gold); }
.hero .sub { color: #9aa3af; font-size: 16px; margin: 18px auto 34px; max-width: 680px; }
/* 行业定位徽章：首屏第一眼告诉来访者"这是给不锈钢精密铸造行业做的" */
.hero .kicker { display: inline-block; border: 1px solid rgba(232,177,74,.55); color: var(--gold); border-radius: 20px; padding: 5px 18px; font-size: 13px; letter-spacing: 2px; margin-bottom: 18px; }
.hero .btns { display: flex; gap: 16px; justify-content: center; }
.btn { display: inline-block; padding: 13px 34px; border-radius: 8px; font-size: 16px; text-decoration: none; font-weight: 600; }
.btn-gold { background: linear-gradient(135deg, var(--gold-bright), var(--gold)); color: var(--ink); }
.btn-ghost { border: 1px solid #3a4150; color: #c9cdd4; }

section { padding: 72px 0; }
.sec-title { text-align: center; margin-bottom: 44px; }
.sec-title h2 { font-size: 28px; font-weight: 700; }
.sec-title p { color: var(--text-sub); margin-top: 8px; }

footer { background: var(--ink); color: #77808c; text-align: center; padding: 30px 0; font-size: 13px; }
footer img { height: 26px; vertical-align: -6px; margin-right: 8px; }
footer .beian { display: block; margin-top: 8px; }
footer .beian a { color: #77808c; text-decoration: none; }
footer .beian a:hover { color: #aab2bd; }

/* 产品卡片（首页矩阵 + 调试中页通用） */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 26px; display: flex; flex-direction: column; }
.card h3 { font-size: 19px; margin-bottom: 4px; }
.card .tagline { font-size: 14px; color: var(--text-sub); flex: 1; }
.card .meta { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; }
.badge { display: inline-block; padding: 3px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-on { background: #e8f5e9; color: #2e7d32; }
.badge-beta { background: #fff3e0; color: #e65100; }
.card a.go { color: var(--blue); text-decoration: none; font-weight: 600; font-size: 14px; }
.card a.go:hover { color: var(--gold-deep); }

/* 产品页 */
.pain-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.pain-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.pain-grid .pain { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 22px 18px; }
.pain .no { color: var(--gold-deep); font-weight: 800; font-size: 13px; }
.pain h3 { font-size: 16px; margin: 8px 0 6px; }
.pain p { font-size: 13px; color: var(--text-sub); }
.pain-sub { text-align: center; color: var(--text-sub); font-size: 14px; margin: -24px 0 24px; }
.feat { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.feat .shot { border-radius: 12px; overflow: hidden; box-shadow: 0 12px 48px rgba(20,30,50,.18); border: 1px solid var(--line); }
.feat .shot img { width: 100%; display: block; }
.feat ul { list-style: none; }
.feat li { padding: 12px 0 12px 32px; position: relative; border-bottom: 1px dashed var(--line); }
.feat li:last-child { border-bottom: none; }
.feat li::before { content: ""; position: absolute; left: 0; top: 16px; width: 17px; height: 17px; background: url('logo-icon.svg') center/contain no-repeat; }
.feat li b { display: block; font-size: 16px; }
.feat li span { font-size: 13px; color: var(--text-sub); }
.price-card { max-width: 720px; margin: 0 auto; background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; box-shadow: 0 12px 48px rgba(20,30,50,.08); }
.price-head { background: linear-gradient(135deg, #1d2230, var(--ink)); color: #fff; text-align: center; padding: 30px 20px; }
.price-head .amount { font-size: 44px; font-weight: 800; color: var(--gold); }
.price-head .unit { font-size: 15px; color: #9aa3af; margin-top: 4px; }
.price-body { padding: 26px 34px; }
.price-body table { width: 100%; border-collapse: collapse; font-size: 14px; }
.price-body td { padding: 10px 0; border-bottom: 1px dashed var(--line); vertical-align: top; }
.price-body td:first-child { color: var(--text-sub); width: 118px; }
.price-body tr:last-child td { border-bottom: none; }
.contact-box { max-width: 640px; margin: 0 auto; text-align: center; }
.qr-placeholder { width: 180px; height: 180px; margin: 0 auto 14px; border: 2px dashed #c3ccd6; border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #98a3b0; font-size: 13px; background: #fff; }
.bank { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 20px 26px; text-align: left; font-size: 14px; margin-top: 26px; }
.bank b { color: var(--gold-deep); }
.flow { display: flex; justify-content: center; margin: 26px 0 34px; flex-wrap: wrap; }
.flow .step { padding: 12px 20px; background: #fff; border: 1px solid var(--line); font-size: 14px; }
.flow .step:first-child { border-radius: 8px 0 0 8px; }
.flow .step:last-child { border-radius: 0 8px 8px 0; }
.flow .step b { color: var(--gold-deep); margin-right: 6px; }
.hero .shot { margin: 52px auto 0; max-width: 960px; border-radius: 12px; overflow: hidden; box-shadow: 0 24px 80px rgba(0,0,0,.55); border: 1px solid #262b36; }
.hero .shot img { width: 100%; display: block; }
.ideas { max-width: 720px; margin: 0 auto; }
.ideas .q { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 18px 22px; margin-bottom: 12px; font-size: 15px; }
.ideas .q::before { content: "💬 "; }

@media (max-width: 860px) {
  .pain-grid { grid-template-columns: 1fr 1fr; }
  .feat, .cards { grid-template-columns: 1fr; }
  .hero h1 { font-size: 28px; }
}

/* 首页首屏 3D 品牌主视觉 */
.hero img.hero-3d { width: 320px; border-radius: 18px;
  box-shadow: 0 0 90px rgba(232,177,74,.28), 0 0 30px rgba(232,177,74,.15), 0 18px 60px rgba(0,0,0,.6); }

/* 段落标题前的小金树点缀 */
.sec-title h2 { display: flex; align-items: center; justify-content: center; gap: 14px; }
.sec-title h2::before { content: ""; width: 26px; height: 26px; flex-shrink: 0;
  background: url('logo-icon.svg') center/contain no-repeat; }

/* 首屏左右结构：左文右图 */
.hero-split { display: flex; align-items: center; gap: 64px; text-align: left; }
.hero-split .hero-text { flex: 1; }
.hero-split h1 { margin-top: 0; }
.hero-split .sub { margin-left: 0; margin-right: 0; max-width: 500px; }
.hero-split .btns { justify-content: flex-start; }
.hero-split img.hero-3d { width: 400px; flex-shrink: 0; margin-bottom: 0; }
@media (max-width: 860px) {
  .hero-split { flex-direction: column; text-align: center; gap: 40px; }
  .hero-split .btns { justify-content: center; }
  .hero-split .sub { margin-left: auto; margin-right: auto; }
  .hero-split img.hero-3d { width: 280px; }
}