*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:#111827;background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{text-decoration:none;color:inherit}button,input,textarea,select{font:inherit}header{height:52px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e8edf3;position:sticky;top:0;background:rgba(255,255,255,.95);backdrop-filter:blur(16px);z-index:30}.logo{font-weight:800;letter-spacing:1px}.logo em{font-style:normal;font-size:8px;color:#94a3b8;letter-spacing:2px;margin-left:8px}nav{display:flex;gap:14px;align-items:center;color:#64748b;font-size:12px}.navcta{background:#111827;color:#fff;padding:10px 15px;border-radius:6px}.mobile{display:none;border:0;background:none;font-size:22px}.hero{padding:96px 5vw 104px;background:#f7f9fc}.eyebrow,.label{font-size:10px;letter-spacing:1.5px;font-weight:800;color:#64748b}.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.02;letter-spacing:-3px;max-width:1100px;margin:10px 0}.hero h1 strong{color:#2563eb}.hero p{color:#64748b;line-height:1.7;font-size:15px;max-width:560px}.muted{color:#64748b;line-height:1.6}.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.btn{display:inline-block;padding:10px 16px;border-radius:6px;font-size:12px}.primary{background:#111827;color:#fff}.secondary{border:1px solid #dbe2ea;background:#fff}.btn.knowledge{background:#2563eb;color:#fff;border:1px solid #2563eb}.section{padding:36px 5vw}.section h2{font-size:clamp(26px,4vw,40px);letter-spacing:-2px;line-height:1.03;margin:4px 0}.gray{background:#f7f9fc}.blue{background:#eaf1ff}.dark{background:#111827;color:#fff}.dark .label,.dark .muted{color:#94a3b8}.grid{display:grid;gap:1px;background:#e1e7ee;margin-top:12px}.g3{grid-template-columns:repeat(3,1fr)}.g2{grid-template-columns:repeat(2,1fr)}.card{background:#fff;padding:14px;min-height:0}.dark .card{background:#111827}.dark .btn.primary{background:#fff;color:#111827}.dark .btn.secondary{border-color:#334155;background:transparent;color:#fff}.card h3{font-size:16px;margin:4px 0}.card p{font-size:13px;color:#64748b;line-height:1.6}.list{margin-top:12px;border-top:1px solid #e1e7ee}.list div{display:grid;grid-template-columns:120px 1fr;padding:10px 0;border-bottom:1px solid #e1e7ee}.list span{font-size:13px;color:#64748b;line-height:1.6}.price{font-size:42px;font-weight:800;letter-spacing:-2px}.price small{font-size:16px;letter-spacing:0}.contact{padding:36px 5vw;background:#f7f9fc;display:grid;grid-template-columns:1.05fr .95fr;gap:24px}.contact h2{font-size:clamp(28px,4vw,44px);line-height:1;letter-spacing:-2px;margin:4px 0}.box{background:#fff;border:1px solid #e1e7ee;border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:8px}.box a:first-child{font-size:22px;font-weight:700}.box a{font-size:14px}.box p,.box small{font-size:12px;color:#64748b;line-height:1.6}.box small{border-top:1px solid #edf0f4;padding-top:10px}.form{display:grid;gap:8px;margin-top:12px}.form input,.form textarea,.form select{width:100%;padding:9px 11px;border:1px solid #dbe2ea;border-radius:6px;background:#fff;outline:none}.form textarea{min-height:70px;resize:vertical}.form button{border:0;cursor:pointer}.toast{display:none;padding:13px;background:#eef6ff;color:#2563eb;border-radius:6px;font-size:12px}.producthero{padding:30px 5vw 36px}.producthero h1{font-size:clamp(28px,4.5vw,46px);letter-spacing:-2px;line-height:1;margin:4px 0}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#e1e7ee;margin-top:12px}.step{background:#fff;padding:14px;min-height:0}.step i{font-style:normal;color:#2563eb;font-size:10px}.step h3{margin-top:12px}.step p{font-size:13px;color:#64748b;line-height:1.6}.casehero{padding:30px 5vw;background:#f7f9fc}.casehero h1{font-size:clamp(26px,4vw,42px);letter-spacing:-2px}.casebody{padding:32px 5vw}.casebody h2{font-size:20px;letter-spacing:-2px}.back{font-size:11px;color:#94a3b8;padding:12px 16px;display:block}footer{padding:14px 16px;border-top:1px solid #e8edf3;color:#64748b;font-size:11px;display:flex;justify-content:space-between}
@media(max-width:800px){header nav{display:none;position:absolute;left:0;right:0;top:52px;background:#fff;padding:12px 16px;flex-direction:column;align-items:flex-start;border-bottom:1px solid #e8edf3;gap:10px}header .navopen{display:flex}.mobile{display:block}.hero{padding:72px 16px 80px}.section{padding:28px 16px}.producthero{padding:20px 16px 24px}.casehero{padding:20px 16px}.casebody{padding:20px 16px}.contact{padding:28px 16px;gap:16px}.g3,.steps{grid-template-columns:1fr 1fr}.g2{grid-template-columns:1fr 1fr}.contact{grid-template-columns:1fr}.list div{grid-template-columns:110px 1fr;padding:8px 0}.card{padding:12px}.step{padding:12px}.box{padding:14px}}@media(max-width:520px){.g3,.g2,.steps{grid-template-columns:1fr}.hero h1{font-size:30px;letter-spacing:-1px}.section h2{font-size:24px;letter-spacing:-1px}.producthero h1{font-size:26px}.contact h2{font-size:26px}.casehero h1{font-size:24px}.card h3{font-size:15px}.card p,.step p{font-size:12px;line-height:1.5}.list div{grid-template-columns:1fr;gap:2px;padding:6px 0}.list span{font-size:12px;line-height:1.5}.box a:first-child{font-size:18px}.btn{padding:8px 14px;font-size:11px}footer{display:block;padding:12px 16px;text-align:center}footer span{display:block;margin-top:4px}.back{padding:8px 16px}.navcta{padding:8px 12px}}

.breadcrumb{font-size:13px;color:#6B6B6B;padding:8px 5vw 0;display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.breadcrumb a{color:#2563eb;text-decoration:none}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb i{font-style:normal;color:#CBD5E1;margin:0 2px}
.breadcrumb span{color:#6B6B6B}
.faqlist{max-width:720px}
.faqitem{padding:16px 0;border-bottom:1px solid #E2E8F0}
.faqitem:last-child{border-bottom:none}
.faqitem h3{font-size:15px;font-weight:600;color:#111827;margin:0 0 6px}
.faqitem p{font-size:14px;line-height:1.7;margin:0}
.dellist{padding-left:20px;line-height:2}
.dellist li{font-size:14px;color:#374151}
@media(max-width:800px){.breadcrumb{padding:8px 16px 0;font-size:12px}}
footer a{color:inherit;text-decoration:none}footer a:hover{text-decoration:underline}

.faq-list{max-width:760px;margin:0 auto}
.faq-list details{border-bottom:1px solid #e1e7ee;padding:16px 0}
.faq-list summary{cursor:pointer;font-weight:600;color:#111827;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:'+';font-size:20px;color:#2563eb;transition:transform .2s}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list p{margin:12px 0 0;color:#6b7280;line-height:1.7}
/* 可点击卡片/列表项右侧正向箭头提示 */
.card{position:relative;transition:background .15s}
a.card::after{content:'→';position:absolute;right:14px;top:50%;transform:translateY(-50%);color:#94a3b8;font-size:15px;font-style:normal;font-weight:400;line-height:1;transition:all .18s}
a.card{padding-right:38px}
a.card:hover{background:#f7f9fc}
a.card:hover::after{color:#2563eb;right:11px}
.list a{position:relative;transition:background .15s;display:block;padding-right:22px}
.list a::after{content:'→';position:absolute;right:4px;top:50%;transform:translateY(-50%);color:#94a3b8;font-size:14px;font-style:normal;font-weight:400;line-height:1;transition:all .18s}
.list a:hover{background:#f7f9fc}
.list a:hover::after{color:#2563eb;right:2px}
header nav a:not(.nav-member-icon):not(.navcta){position:relative}
/* 文章正文：强制正体、优化阅读排版 */
.article-body,.article-body p,.article-body li,.article-body td,.article-body th,.article-meta{font-style:normal !important}
.article-body p{line-height:1.95;letter-spacing:.2px}
.article-body strong{font-style:normal;font-weight:700}

/* 面包屑与文章小标签：正体、小号、利于阅读 */
.breadcrumb{font-size:12px;color:#94a3b8;font-style:normal;padding:8px 5vw 0}
.breadcrumb a{color:#2563eb;font-style:normal}
.breadcrumb i{font-style:normal;color:#cbd5e1}
.breadcrumb .bc-cat{font-style:normal;color:#94a3b8}
.article-hero .label{font-style:normal !important;letter-spacing:1px}
.article-hero h1{font-style:normal}
.article-meta{font-style:normal !important}

/* header-right: 会员图标+汉堡按钮，始终显示在右侧 */
.header-right{display:flex;align-items:center;gap:6px;margin-left:auto}
.header-right .nav-member-icon{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:#2563eb;color:#fff;box-shadow:0 2px 6px rgba(37,99,235,.35);transition:transform .15s,box-shadow .15s}
.header-right .nav-member-icon:hover{transform:translateY(-1px);box-shadow:0 4px 10px rgba(37,99,235,.45)}
.header-right .nav-member-icon svg{width:20px;height:20px}
@media(max-width:800px){
  header nav .nav-member-icon{display:none}
}

/* ── 自研工具小四宫格 ── */
.section-tools{max-width:560px;margin:0 auto;padding:28px 20px;text-align:center}
.section-tools h2{font-size:20px}
.section-tools .muted{font-size:13px;margin-top:4px}
.tool-quad{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:16px}
.tq-card{display:block;background:#fff;border:1px solid #e8ecf1;border-radius:8px;overflow:hidden;text-decoration:none;color:inherit;transition:box-shadow .15s}
.tq-card:hover{box-shadow:0 2px 10px rgba(0,0,0,.06)}
.tq-card.featured{border:1.5px solid #2563eb}
.tq-img{width:100%;aspect-ratio:1/1;overflow:hidden;background:#f7f9fc;max-height:100px}
.tq-img img{width:100%;height:100%;object-fit:cover;display:block}
.tq-body{padding:6px 4px 8px}
.tq-body h3{font-size:11px;font-weight:600;margin:0 0 2px;line-height:1.3;display:flex;align-items:center;justify-content:center;gap:3px;flex-wrap:wrap}
.tq-tag{font-size:8px;background:#2563eb;color:#fff;padding:0 4px;border-radius:3px;font-weight:500}
.tq-body p{display:none}
.tq-price{font-size:12px;font-weight:700;color:#111827}
.tq-price small{font-size:9px;font-weight:400;color:#9ca3af}
.tq-free{text-align:center;margin-top:12px;font-size:12px}
.tq-free a{color:#2563eb;text-decoration:none}
.tq-free a:hover{text-decoration:underline}
@media(max-width:600px){
  .tool-quad{grid-template-columns:repeat(4,1fr);gap:6px}
  .section-tools{padding:20px 14px}
  .tq-img{max-height:none}
  .tq-body{padding:5px 3px 6px}
  .tq-body h3{font-size:10px}
  .tq-price{font-size:11px}
}

.hero{text-align:center}
.hero h1{margin-left:auto;margin-right:auto}
.hero p{margin-left:auto;margin-right:auto}
.hero .actions{justify-content:center}