/* 行业落地页 / 经营知识页共用。色板沿用原来的紫色系（--primary 为主色），
   这里的变量是独立定义，改色时与 home.css 一起改。 */
:root{--primary:#7c3aed;--primary2:#a855f7;--ink:#18181b;--muted:#71717a;--line:#e4e4e7;--bg:#fafafa;--card:#fff;--soft:#f5f3ff;--green:#16a34a}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.65}a{text-decoration:none;color:inherit}.container{width:min(1200px,calc(100% - 40px));margin:auto}
.nav{height:80px;display:flex;align-items:center;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(228,228,231,.7)}.nav .container{display:flex;align-items:center;justify-content:space-between}
/* logo 三个字统一用品牌色（模板里的 <span> 只是历史写法，颜色交给 .logo 统一控制） */
.logo{font-weight:800;font-size:23px;letter-spacing:.5px;color:var(--primary)}.navlinks{display:flex;gap:30px;color:#52525b;font-size:15px}.navlinks a:hover{color:var(--primary)}.navbtn{padding:12px 20px;border-radius:12px;background:var(--primary);color:white;font-weight:750;font-size:15px;box-shadow:0 12px 30px rgba(124,58,237,.22)}
/* 首屏保持原来的浅色渐变；变大的是尺寸与留白 */
.hero{overflow:hidden;background:radial-gradient(circle at 75% 15%,#ede9fe 0,transparent 35%),linear-gradient(180deg,#fff 0,#faf7ff 100%);padding:110px 0 100px}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:70px;align-items:center}.eyebrow{display:inline-flex;gap:8px;align-items:center;background:#f3e8ff;color:#6d28d9;border:1px solid #e9d5ff;padding:8px 14px;border-radius:999px;font-size:14px;font-weight:700}.hero h1{font-size:60px;line-height:1.1;margin:24px 0 20px;letter-spacing:-2.4px}.hero h1 em{font-style:normal;color:var(--primary)}.hero p{font-size:20px;color:#52525b;max-width:620px;margin:0 0 32px}.actions{display:flex;gap:14px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:56px;padding:0 28px;border-radius:14px;font-weight:780;font-size:16px}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 12px 30px rgba(124,58,237,.22)}.btn-secondary{background:#fff;border:1px solid var(--line);color:var(--ink)}.trust{display:flex;gap:24px;flex-wrap:wrap;margin-top:28px;color:#71717a;font-size:14px}
.mockup{background:#18181b;border-radius:28px;padding:10px;box-shadow:0 30px 70px rgba(24,24,27,.22)}.screen{background:#fafafa;border-radius:20px;overflow:hidden}.screen-top{height:48px;background:#fff;border-bottom:1px solid #eee;display:flex;align-items:center;padding:0 18px;gap:8px}.dot{width:8px;height:8px;border-radius:50%;background:#ddd}.screen-body{display:grid;grid-template-columns:150px 1fr;min-height:410px}.side{background:#fff;padding:18px 12px;border-right:1px solid #eee}.side b{display:block;padding:8px 10px;margin-bottom:10px}.side div{padding:8px 10px;color:#71717a;font-size:12px}.side .active{background:#f3e8ff;color:#6d28d9;border-radius:8px;font-weight:700}.dash{padding:20px}.dash h3{margin:0 0 16px;font-size:18px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stat{background:#fff;border:1px solid #eee;border-radius:12px;padding:13px}.stat small{color:#888}.stat strong{display:block;font-size:22px;margin-top:4px}.table{margin-top:14px;background:#fff;border:1px solid #eee;border-radius:12px;overflow:hidden}.row{display:grid;grid-template-columns:1fr .8fr .8fr;padding:11px 13px;border-bottom:1px solid #f1f1f1;font-size:12px}.row:last-child{border:0}
.section{padding:112px 0}.section.alt{background:var(--bg)}.center{text-align:center}.kicker{color:var(--primary);font-weight:800;font-size:14px;letter-spacing:1.5px}.section h2{font-size:46px;line-height:1.22;margin:12px 0 16px;letter-spacing:-1.6px}.lead{color:var(--muted);font-size:17px;max-width:740px;margin:0 auto 54px}.pain-grid,.feature-grid,.steps,.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.pain,.feature,.scene,.step{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px;transition:.2s}.pain:hover,.feature:hover,.scene:hover{transform:translateY(-6px);box-shadow:0 16px 35px rgba(24,24,27,.08)}.pain{background:#fff}.icon{width:48px;height:48px;display:grid;place-items:center;border-radius:14px;background:var(--soft);font-size:23px;margin-bottom:18px}.pain h3,.feature h3,.scene h3,.step h3{margin:0 0 9px;font-size:19px}.pain p,.feature p,.scene p,.step p{margin:0;color:var(--muted);font-size:14px}.feature-grid{grid-template-columns:repeat(3,1fr)}.feature{min-height:200px}.feature .tag{display:inline-block;background:#f4f4f5;color:#52525b;padding:4px 10px;border-radius:7px;font-size:11px;margin-top:16px}
.showcase{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.checklist{display:grid;gap:14px;margin:26px 0}.check{display:flex;gap:10px;align-items:flex-start;font-size:15px}.check i{font-style:normal;color:var(--green);font-weight:900}.card-ui{background:linear-gradient(145deg,#faf5ff,#fff);border:1px solid #e9d5ff;border-radius:26px;padding:30px;box-shadow:0 20px 50px rgba(124,58,237,.10)}.member{background:#fff;border-radius:18px;border:1px solid #eee;padding:20px}.member-top{display:flex;justify-content:space-between;align-items:center}.avatar{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:#ede9fe;color:#6d28d9;font-weight:800}.balance{margin-top:18px;display:flex;justify-content:space-between;align-items:end}.balance strong{font-size:30px}.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.mini{background:#fafafa;border-radius:12px;padding:12px}.mini small{display:block;color:#888}.mini b{font-size:15px}
.cta{padding:110px 0;background:linear-gradient(135deg,#5b21b6,#7c3aed 55%,#a855f7);color:#fff}.cta h2{font-size:50px;letter-spacing:-1.6px;margin:10px 0}.cta p{color:#ede9fe;font-size:18px;margin:0 auto 30px;max-width:660px}.cta .btn-primary{background:#fff;color:#6d28d9;box-shadow:none}.cta .btn-secondary{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
.faq{max-width:860px;margin:auto}.faq details{border-bottom:1px solid var(--line);padding:22px 0}.faq summary{cursor:pointer;font-weight:750;font-size:17px}.faq p{color:var(--muted);font-size:15px;margin:12px 0 0}
.qrcode-wrapper{display:flex;flex-direction:column;align-items:center;margin-top:10px}.qrcode-placeholder{width:220px;height:220px;border:2px dashed var(--line);border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted);font-size:13px;background:var(--bg)}.qrcode-placeholder img{width:100%;height:100%;object-fit:contain;border-radius:14px}.qrcode-icon{font-size:42px;margin-bottom:10px}
.footer{padding:56px 0;color:#71717a;font-size:13px;border-top:1px solid var(--line)}.footer-inner{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
@media(max-width:900px){.hero-grid,.showcase{grid-template-columns:1fr}.hero{padding:80px 0 70px}.hero h1{font-size:44px}.pain-grid,.feature-grid,.steps,.scenes{grid-template-columns:1fr 1fr}.mockup{max-width:700px;margin:auto}.navlinks{display:none}}
@media(max-width:600px){.container{width:min(100% - 28px,1200px)}.nav{height:66px}.navbtn{padding:10px 14px;font-size:14px}.hero h1{font-size:36px;letter-spacing:-1.2px}.hero p{font-size:17px}.section{padding:72px 0}.section h2{font-size:31px}.lead{font-size:16px}.pain-grid,.feature-grid,.steps,.scenes{grid-template-columns:1fr}.screen-body{grid-template-columns:100px 1fr}.side{padding:12px 8px}.dash{padding:13px}.stats{grid-template-columns:1fr}.row{grid-template-columns:1fr .7fr .7fr}.cta{padding:80px 0}.cta h2{font-size:32px}.actions .btn{width:100%}}
.overview{background:linear-gradient(180deg,#fff,#faf7ff);border:1px solid var(--line);border-radius:22px;padding:34px;display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.overview h2{font-size:29px;margin:0 0 14px;letter-spacing:-.8px}
.overview p{margin:0 0 12px;color:var(--muted);font-size:15px}
.overview p strong{color:#27272a}
.overview dl{margin:0;display:grid;grid-template-columns:90px 1fr;gap:12px 18px;font-size:15px;align-items:start}
.overview dt{color:#8b8b93;white-space:nowrap}
.overview dd{margin:0;color:#27272a}
@media(max-width:800px){.overview{grid-template-columns:1fr;gap:22px;padding:22px}.overview dl{grid-template-columns:1fr;gap:2px 0}.overview dd{margin-bottom:12px}}
/* 经营知识区块（落地页）。列表卡片，点进 /{行业}/knowledge/{id}/ 看全文。 */
.know-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;text-align:left}
.know-card{display:block;background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;transition:.2s}
.know-card:hover{transform:translateY(-6px);box-shadow:0 16px 35px rgba(24,24,27,.08);border-color:#ddd6fe}
.know-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px}
.know-cat{background:var(--soft);color:#6d28d9;padding:4px 10px;border-radius:999px;font-size:11px;font-weight:700}
.know-time{color:#a1a1aa;font-size:12px;white-space:nowrap}
.know-card h3{margin:0 0 10px;font-size:19px;line-height:1.45}
.know-card p{margin:0 0 16px;color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.know-card small{color:var(--primary);font-size:13px;font-weight:700}
@media(max-width:900px){.know-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.know-grid{grid-template-columns:1fr}}
/* 落地页经营知识区块底部的「查看全部」入口，指向 /knowledge/ 列表页 */
.know-all{margin:32px 0 0;text-align:center;font-size:15px;font-weight:700}
.know-all a{color:var(--primary)}
.know-all a:hover{text-decoration:underline}