:root{
  --ink:#16305C;          /* 墨蓝 */
  --ink-deep:#0F2344;     /* 深底 */
  --seal:#C8452D;         /* 印章红 */
  --paper:#F4F1EA;        /* 宣纸白 */
  --graphite:#2B2F36;     /* 石墨灰 */
  --muted:#6B7280;        /* 次要文字 */
  --line:#E3DDD2;         /* 分隔线 */
  --on-dark-hint:#B9C5D6;
  --on-dark-dim:#8FA0B8;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --font-en:"Inter","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  color:var(--graphite);
  background:#fff;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}

/* ---------- 通用容器 ---------- */
.wrap{max-width:1440px;margin:0 auto}
.section{padding:96px 64px}
.section.paper{background:var(--paper)}
.section.ink{background:var(--ink)}
.section.deep{background:var(--ink-deep)}
.section.seal{background:var(--seal);text-align:center}
.section.dark-title{color:#fff}

.eyebrow{
  font-family:var(--font-en);font-size:12px;font-weight:700;
  letter-spacing:2px;color:var(--seal);margin-bottom:14px;display:block
}
.section.ink .eyebrow,.section.deep .eyebrow{color:#E08A76}
.section.seal .eyebrow{color:#F6C4B8}

h2.title{
  font-family:var(--font-serif);font-size:34px;font-weight:700;
  line-height:1.45;color:var(--ink);margin-bottom:14px
}
.section.ink h2.title,.section.deep h2.title{color:#fff}
.sub{
  font-size:15px;line-height:1.8;color:var(--muted);
  max-width:860px
}
.section.ink .sub,.section.deep .sub{color:var(--on-dark-hint)}
.section.seal .sub{color:#FBE3DC;margin:0 auto}
.head-block{margin-bottom:48px}

/* ---------- 页头 ---------- */
.site-header{
  display:flex;align-items:center;justify-content:space-between;
  height:80px;padding:0 64px;border-bottom:1px solid var(--line);
  background:#fff;position:sticky;top:0;z-index:50
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:40px;height:40px;border-radius:6px;background:var(--ink);
  display:flex;align-items:center;justify-content:center;flex:none
}
.brand-mark span{
  font-family:var(--font-serif);font-size:14px;font-weight:700;
  color:#fff;letter-spacing:-1px
}
.brand-name{
  font-family:var(--font-serif);font-size:17px;font-weight:700;
  color:var(--ink);line-height:1.2
}
.brand-domain{
  font-family:var(--font-en);font-size:11px;font-weight:500;
  color:var(--muted);letter-spacing:.4px
}
.site-nav{display:flex;gap:36px}
.site-nav a{font-size:15px;color:var(--graphite);transition:color .15s}
.site-nav a:hover{color:var(--ink)}
.site-nav a.active{color:var(--ink);font-weight:700}
.header-right{display:flex;align-items:center;gap:22px}
.lang{display:flex;align-items:center;gap:7px;font-size:13px}
.lang .on{font-weight:700;color:var(--ink)}
.lang .off{color:var(--muted);cursor:pointer}
.lang .split{color:var(--line)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 26px;border-radius:3px;background:var(--seal);
  color:#fff;font-size:14px;font-weight:500;transition:opacity .15s
}
.btn:hover{opacity:.9}
.btn.ghost{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.24);font-weight:400
}
.btn.light{background:#fff;color:var(--seal);font-weight:700}

/* ---------- Hero ---------- */
.hero{
  display:flex;align-items:center;justify-content:space-between;
  gap:64px;padding:88px 64px;background:var(--ink-deep)
}
.hero-copy{width:660px;max-width:100%}
.hero-badge{
  display:inline-block;padding:7px 14px;border-radius:2px;
  background:rgba(255,255,255,.1);font-size:12px;font-weight:500;
  color:#C9D2E0;letter-spacing:.6px;margin-bottom:26px
}
.hero h1{
  font-family:var(--font-serif);font-size:54px;font-weight:700;
  line-height:1.3;color:#fff;margin-bottom:26px;white-space:pre-line
}
.hero-sub{
  font-size:16px;line-height:1.8;color:var(--on-dark-hint);margin-bottom:26px
}
.hero-ctas{display:flex;gap:14px;margin-bottom:26px;flex-wrap:wrap}
.hero-ctas .btn{padding:16px 32px;font-size:15px}
.hero-stats{
  display:flex;gap:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14);
  flex-wrap:wrap
}
.hero-stats .num{
  font-family:var(--font-en);font-size:34px;font-weight:700;color:#fff;line-height:1.2
}
.hero-stats .lbl{font-size:13px;color:var(--on-dark-dim)}
.hero-img{
  width:520px;height:430px;flex:none;border-radius:4px;
  object-fit:cover;background:var(--ink)
}

/* ---------- 卡片通用 ---------- */
.grid{display:grid;gap:24px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:4px;
  padding:32px 28px
}
.card .idx{
  font-family:var(--font-en);font-size:13px;font-weight:700;
  color:var(--seal);letter-spacing:1.5px
}
.card h3{
  font-family:var(--font-serif);font-size:19px;font-weight:700;
  color:var(--ink);margin-top:14px
}
.card p{margin-top:14px;font-size:14px;line-height:1.75;color:var(--muted)}
.card.tag-top h3{margin-top:0}

/* ---------- 行业 bento ---------- */
.bento{display:grid;grid-template-columns:620px 1fr;gap:20px}
.bento-feature{
  background:var(--ink);border-radius:4px;padding:40px;
  display:flex;flex-direction:column;gap:16px;grid-row:span 2
}
.bento-feature .tag{
  font-family:var(--font-en);font-size:11px;font-weight:700;
  color:#E08A76;letter-spacing:1.6px
}
.bento-feature h3{
  font-family:var(--font-serif);font-size:30px;font-weight:700;
  color:#fff;line-height:1.4
}
.bento-feature p{font-size:15px;line-height:1.8;color:var(--on-dark-hint)}
.bento-feature .files{font-size:13px;line-height:1.9;color:var(--on-dark-dim)}
.bento-right{display:grid;grid-template-rows:1fr 1fr;gap:20px}
.bento-cell{
  background:var(--paper);border-radius:4px;padding:32px;
  display:flex;flex-direction:column;justify-content:center;gap:10px
}
.bento-cell h4{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--ink)}
.bento-cell p{font-size:14px;line-height:1.75;color:var(--muted)}
.bento-lower{
  display:grid;grid-template-columns:repeat(6,1fr);gap:20px;margin-top:20px
}
.bento-lower .cell{
  background:#fff;border:1px solid var(--line);border-radius:4px;
  padding:28px 26px;display:flex;flex-direction:column;gap:8px
}
.bento-lower h4{font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--ink)}
.bento-lower p{font-size:13px;line-height:1.7;color:var(--muted)}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:28px}
.step{padding-top:26px;border-top:2px solid rgba(255,255,255,.2)}
.step .n{font-family:var(--font-en);font-size:38px;font-weight:700;color:#6E86A8;line-height:1}
.step h4{font-family:var(--font-serif);font-size:19px;font-weight:700;color:#fff;margin-top:12px}
.step p{margin-top:12px;font-size:14px;line-height:1.75;color:var(--on-dark-hint)}

/* ---------- 案例卡 ---------- */
.case-card{
  background:var(--paper);border-radius:4px;padding:34px 30px;
  display:flex;flex-direction:column;gap:12px
}
.case-card .tag{
  font-size:11px;font-weight:700;color:var(--seal);letter-spacing:1px
}
.case-card h3{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--ink)}
.case-card .facts{
  font-size:14px;line-height:2;color:var(--muted);white-space:pre-line
}
.case-card .body{
  font-size:14px;line-height:1.9;color:var(--muted);white-space:pre-line
}

/* ---------- 转化区 ---------- */
.cta-final h2{
  font-family:var(--font-serif);font-size:38px;font-weight:700;
  color:#fff;line-height:1.4
}
.cta-final .sub{font-size:16px;line-height:1.8;color:#FBE3DC;margin:26px auto 0}
.cta-contact{
  display:flex;gap:56px;justify-content:center;flex-wrap:wrap;margin:36px 0
}
.cta-contact .item{text-align:center}
.cta-contact .k{font-size:12px;font-weight:500;color:#F6C4B8;letter-spacing:1.5px;margin-bottom:6px}
.cta-contact .v{font-family:var(--font-en);font-size:20px;font-weight:500;color:#fff}
.cta-final .btn.light{padding:17px 44px;font-size:16px}
.section.seal .btn.light{margin:0 auto}

/* ---------- 页内标题区 ---------- */
.page-head{
  background:var(--ink);padding:72px 64px;display:flex;flex-direction:column;gap:18px
}
.breadcrumb{display:flex;gap:8px;font-size:13px;color:var(--on-dark-dim)}
.breadcrumb a{color:var(--on-dark-dim)}
.breadcrumb .sep{color:#4A5F80}
.breadcrumb .cur{color:#D8E0EC}
.page-head h1{
  font-family:var(--font-serif);font-size:44px;font-weight:700;
  color:#fff;line-height:1.35
}
.page-head .lead{
  font-size:16px;line-height:1.8;color:var(--on-dark-hint);max-width:900px
}

/* ---------- 内容块 ---------- */
.split{display:flex;gap:72px;padding:88px 64px}
.split .copy{width:720px;flex:none;display:flex;flex-direction:column;gap:20px}
.split .copy h2{font-family:var(--font-serif);font-size:32px;font-weight:700;color:var(--ink);line-height:1.45}
.split .copy p{font-size:16px;line-height:1.9;color:var(--graphite)}
.split .side{flex:1;display:flex;flex-direction:column;gap:16px}
.info-card{background:var(--paper);border-radius:4px;padding:34px 30px}
.info-card h4{font-family:var(--font-serif);font-size:18px;font-weight:700;color:var(--ink);margin-bottom:16px}
.info-card .rows{font-size:14px;line-height:2.1;color:var(--muted);white-space:pre-line}
.info-card.dark{background:var(--ink)}
.info-card.dark h4{color:#fff}
.info-card.dark .rows{color:var(--on-dark-hint)}

.list-card{background:var(--paper);border-radius:4px;padding:34px 30px}
.list-card h3{font-family:var(--font-serif);font-size:22px;font-weight:700;color:var(--ink);margin-bottom:14px}
.list-card .list{font-size:14px;line-height:1.85;color:var(--muted);white-space:pre-line}

/* ---------- 行业清单 ---------- */
.two-col-list{display:flex;gap:56px;padding:80px 64px;background:var(--paper);flex-direction:column}
.two-col-list h3{font-family:var(--font-serif);font-size:30px;font-weight:700;color:var(--ink);line-height:1.45}
.two-col-list .cols{display:flex;gap:56px;margin-top:28px}
.two-col-list .cols p{font-size:15px;line-height:2;color:var(--graphite);white-space:pre-line;flex:1}

/* ---------- 联系 ---------- */
.contact-grid{display:flex;gap:64px;padding:80px 64px;background:var(--paper)}
.contact-info{width:520px;flex:none;display:flex;flex-direction:column;gap:18px}
.contact-info h2{font-family:var(--font-serif);font-size:30px;font-weight:700;color:var(--ink);line-height:1.45}
.contact-info .hint{font-size:14px;line-height:1.8;color:var(--muted)}
.contact-item{background:#fff;padding:20px 24px;border-radius:4px}
.contact-item .k{font-size:12px;color:var(--muted);letter-spacing:1px;margin-bottom:6px}
.contact-item .v{font-family:var(--font-en);font-size:22px;font-weight:500;color:var(--ink)}
.contact-item .v.small{font-size:15px;font-family:var(--font-sans);line-height:1.7}
.form-card{flex:1;background:#fff;border-radius:4px;padding:40px}
.form-card h2{font-family:var(--font-serif);font-size:26px;font-weight:700;color:var(--ink);line-height:1.45;margin-bottom:22px}
.form-row{display:flex;gap:18px;margin-bottom:18px}
.field{flex:1;display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;font-weight:500;color:var(--graphite)}
.field input,.field textarea{
  height:48px;border:1px solid var(--line);border-radius:3px;
  font-family:var(--font-sans);font-size:14px;padding:0 14px;color:var(--graphite);background:#fff
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink)}
.submit-btn{
  width:100%;height:52px;border:none;border-radius:3px;background:var(--seal);
  color:#fff;font-family:var(--font-sans);font-size:16px;font-weight:700;
  cursor:pointer;transition:opacity .15s
}
.submit-btn:hover{opacity:.9}
.form-note{margin-top:14px;font-size:13px;line-height:1.7;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);padding:72px 64px 36px}
.footer-top{display:flex;justify-content:space-between;gap:64px}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-logo{display:flex;align-items:center;gap:12px}
.footer-logo .mark{
  width:40px;height:40px;border-radius:6px;background:#fff;
  display:flex;align-items:center;justify-content:center
}
.footer-logo .mark span{font-family:var(--font-serif);font-size:14px;font-weight:700;color:var(--ink);letter-spacing:-1px}
.footer-brand .name{font-family:var(--font-serif);font-size:19px;font-weight:700;color:#fff}
.footer-brand .tagline{font-size:13px;color:var(--on-dark-dim)}
.footer-nav{display:flex;gap:72px}
.footer-col{display:flex;flex-direction:column;gap:14px}
.footer-col .h{
  font-size:13px;font-weight:700;color:#fff;letter-spacing:1.2px
}
.footer-col a,.footer-col span{font-size:14px;color:var(--on-dark-dim);line-height:1.9}
.footer-col a:hover{color:#fff}
.footer-contact{
  display:flex;gap:56px;flex-wrap:wrap;padding-top:32px;margin-top:44px;
  border-top:1px solid rgba(255,255,255,.14)
}
.footer-contact .k{font-size:12px;color:#6E86A8;letter-spacing:1px;margin-bottom:6px}
.footer-contact .v{font-family:var(--font-en);font-size:15px;font-weight:500;color:#D8E0EC}
.footer-contact .v.small{font-family:var(--font-sans);font-size:14px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:24px;
  padding-top:28px;margin-top:28px;border-top:1px solid rgba(255,255,255,.14)
}
.footer-bottom .left{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.footer-bottom .right{font-family:var(--font-en);font-size:13px;font-weight:500;color:#6E86A8}
.footer-bottom .copy{font-size:13px;color:#6E86A8}
.icp-todo{
  font-size:12px;color:var(--on-dark-dim);letter-spacing:.5px;
  padding:5px 11px;border-radius:2px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.28)
}

/* ---------- 特色项目区块（案例页） ---------- */
.group-label{display:flex;align-items:center;gap:10px;margin-bottom:26px}
.group-label .bar{width:22px;height:2px;background:var(--seal);flex:none}
.group-label .txt{font-size:14px;font-weight:500;color:var(--on-dark-dim);letter-spacing:1px}

.wide-card{
  display:flex;gap:48px;justify-content:space-between;
  background:rgba(255,255,255,.07);border-radius:4px;padding:40px
}
.wide-card .main{flex:1;display:flex;flex-direction:column;gap:12px}
.wide-card .tag{font-size:11px;font-weight:700;color:#E08A76;letter-spacing:1px}
.wide-card h3{
  font-family:var(--font-serif);font-size:26px;font-weight:700;
  color:#fff;line-height:1.4
}
.wide-card .body{
  font-size:14px;line-height:1.9;color:var(--on-dark-hint);white-space:pre-line
}
.panel{
  width:300px;flex:none;background:var(--ink-deep);border-radius:4px;padding:28px 26px
}
.panel h4{
  font-family:var(--font-serif);font-size:15px;font-weight:700;
  color:#fff;margin-bottom:14px
}
.panel .rows{font-size:13px;line-height:2;color:var(--on-dark-dim);white-space:pre-line}

.spec-card{
  background:rgba(255,255,255,.07);border-radius:4px;padding:36px 34px;
  display:flex;flex-direction:column;gap:14px
}
.spec-card .tag{font-size:11px;font-weight:700;color:#E08A76;letter-spacing:1px}
.spec-card h3{
  font-family:var(--font-serif);font-size:24px;font-weight:700;
  color:#fff;line-height:1.45
}
.spec-card .body{
  font-size:14px;line-height:1.9;color:var(--on-dark-hint);white-space:pre-line
}
.spec-card .info{
  margin-top:auto;padding-top:14px;font-size:13px;font-weight:500;line-height:1.9;
  color:var(--on-dark-dim);white-space:pre-line;border-top:1px solid rgba(255,255,255,.14)
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .section{padding:72px 40px}
  .hero,.split,.contact-grid{padding:64px 40px}
  .page-head{padding:56px 40px}
  .site-header{padding:0 40px}
  .site-footer{padding:56px 40px 32px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .bento{grid-template-columns:1fr}
  .bento-feature{grid-row:auto}
  .bento-lower{grid-template-columns:repeat(3,1fr)}
  .hero-copy{width:auto}
  .hero{flex-direction:column;align-items:flex-start}
  .hero-img{width:100%;height:340px}
  .split{flex-direction:column}
  .split .copy{width:auto}
  .contact-grid{flex-direction:column}
  .contact-info{width:auto}
  .two-col-list .cols{flex-direction:column}
  .wide-card{flex-direction:column;gap:28px;padding:28px}
  .panel{width:auto}
}
@media (max-width:820px){
  .wide-card{padding:24px 20px}
  .site-header{height:auto;padding:12px 20px;flex-wrap:wrap;gap:12px}
  .site-nav{gap:18px;flex-wrap:wrap;order:3;width:100%}
  .site-nav a{font-size:14px}
  .header-right{gap:14px}
  .hero{padding:48px 20px}
  .hero h1{font-size:34px}
  .hero-stats{gap:24px}
  .section{padding:56px 20px}
  .split,.contact-grid{padding:48px 20px}
  .page-head{padding:40px 20px}
  .page-head h1{font-size:30px}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .bento-lower{grid-template-columns:1fr}
  .footer-top{flex-direction:column;gap:32px}
  .footer-nav{gap:32px;flex-wrap:wrap}
  .footer-contact{gap:24px;flex-direction:column}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .form-row{flex-direction:column}
  .two-col-list{padding:48px 20px}
  .cta-contact{gap:24px;flex-direction:column}
  .cta-final h2{font-size:26px}
}

/* ---------- thebless 图形 logo ---------- */
.brand-logo{height:42px;width:auto;flex:none}
.footer-logo .footer-mark{height:40px;width:auto}