:root{
--primary:#1b3a6b; --accent:#e4572e; --ink:#222834; --muted:#6e788a;
--line:#dfe4ee; --light:#f4f6f9; --bg:#fff;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px}
a{color:var(--primary);text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25;margin:0 0 16px;color:var(--primary)}
h2{font-size:clamp(22px,2.6vw,30px);margin:0 0 20px;color:var(--primary)}
h3{font-size:19px;margin:0 0 8px;color:var(--primary)}
p{margin:0 0 12px}
ul,ol{margin:0 0 12px;padding-left:22px}
/* header */
.site-header{position:sticky;top:0;background:rgba(27,58,107,.97);backdrop-filter:blur(6px);z-index:20}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{color:#fff;font-weight:700;font-size:20px;letter-spacing:.5px}
.brand span{color:#9fb4d6;font-weight:400;font-size:11px;letter-spacing:2.4px;
margin-left:8px;vertical-align:3px;text-transform:uppercase}
.nav{display:flex;gap:22px;margin-left:12px}
.nav a{color:#dbe4f5;font-size:15px}
.nav a:hover{color:#fff}
.nav a.on{color:#fff;font-weight:600;box-shadow:inset 0 -2px 0 var(--accent)}
.btn{display:inline-block;padding:10px 18px;border-radius:8px;font-size:15px;transition:.2s;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff;margin-left:auto;border:0}
.btn-primary:hover{filter:brightness(1.06)}
.btn-ghost{border:1.5px solid var(--primary);color:var(--primary)}
.btn-ghost:hover{background:var(--primary);color:#fff}
.cta-row .btn-primary{margin-left:0}
/* hero */
.hero{background:var(--light);padding:64px 0}
.page-hero{padding:40px 0 44px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.badge{display:inline-block;border:1.5px solid var(--accent);color:var(--accent);
border-radius:999px;padding:4px 14px;font-size:14px;margin-bottom:18px}
.hero p.lead{font-size:18px;color:var(--muted);margin-bottom:26px;max-width:760px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.screenshot{background:#fff;border:1px solid var(--line);border-radius:12px;
min-height:260px;display:flex;align-items:center;justify-content:center;
color:#9aa3b5;font-size:14px}
.page-hero .screenshot{min-height:180px}
.shot-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.shot-grid .screenshot{min-height:200px}
/* breadcrumb */
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:14px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span.sep{margin:0 6px;color:#c3cad8}
/* sections */
.section{padding:52px 0;border-top:1px solid var(--line)}
/* 首个子元素不留顶部外边距，避免首页（首块是信任条）比内页多出 44px */
.section > .wrap > :first-child{margin-top:0}
.section h2 ~ h2{margin-top:44px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.card{background:var(--light);border:1px solid var(--line);border-radius:12px;padding:22px}
.card p{color:var(--muted);font-size:15px;margin:0}
.card .top{height:4px;background:var(--primary);border-radius:4px;margin:-22px -22px 18px;border-bottom-left-radius:0;border-bottom-right-radius:0}
.card.accent .top{background:var(--accent)}
.card a.more{display:inline-block;margin-top:10px;font-size:14px;color:var(--accent)}
.card a.more:hover{text-decoration:underline}
/* trust */
.trust{background:var(--primary);color:#eaf0fb;padding:18px 0;font-size:15px;text-align:center}
/* list */
.checks{list-style:none;padding:0;margin:0}
.checks li{padding:12px 0;border-bottom:1px dashed var(--line)}
.checks li strong{color:var(--primary);margin-right:8px}
.note{color:var(--muted);font-size:14px}
.steps{list-style:none;padding:0;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding:0 0 18px 44px}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:28px;height:28px;
background:var(--primary);color:#fff;border-radius:50%;text-align:center;line-height:28px;font-size:14px}
.steps strong{display:block;color:var(--primary)}
.steps span{color:var(--muted);font-size:15px}
blockquote{margin:0 0 16px;padding:14px 18px;background:var(--light);border-left:3px solid var(--accent);
color:var(--muted);font-size:15px}
/* table */
.tbl{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 16px}
.tbl th,.tbl td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.tbl th{background:var(--light);color:var(--primary);font-weight:600}
/* form */
.form{max-width:640px}
.field{display:block;margin-bottom:16px}
.field > span{display:block;font-size:14px;color:var(--muted);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:10px 12px;border:1px solid var(--line);
border-radius:8px;font-size:15px;font-family:inherit;color:var(--ink);background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary)}
.form .btn-primary{margin-left:0;margin-top:8px}
/* faq */
.faq details{background:var(--light);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;color:var(--primary)}
.faq p{margin:10px 0 0;color:var(--muted)}
/* footer */
.site-footer{background:#11244a;color:#aab8d4;padding:40px 0 24px;margin-top:0}
.footer-inner{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer-brand strong{color:#fff;font-size:17px}
.footer-brand p{margin:6px 0 0;font-size:14px}
.footer-nav{display:flex;gap:18px;flex-wrap:wrap;font-size:14px}
.footer-nav a{color:#aab8d4}
.footer-nav a:hover{color:#fff}
.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:16px;font-size:13px}
@media (max-width:860px){
.hero-grid,.grid-2{grid-template-columns:1fr}
.grid-4,.grid-3{grid-template-columns:1fr 1fr}
.nav{display:none}
.shot-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
.grid-4,.grid-3{grid-template-columns:1fr}
.hero{padding:44px 0}
}
/* hero 副句的第二层：六项能力短句 */
.hero p.lead .sub{display:block;font-size:15px;line-height:1.95;color:#55607a;margin-top:8px;letter-spacing:.2px}
@media (max-width:560px){.hero p.lead .sub{font-size:14px}}
/* 痛点卡（模块三） */
.pain{background:#fff;border:1px solid var(--line);border-left:3px solid #d0544a;border-radius:10px;padding:20px}
.pain h3{color:#b23e35;font-size:17px;margin:0 0 8px}
.pain p{color:var(--muted);font-size:14.5px;margin:0;line-height:1.75}
/* 高亮卡（金边框） */
.card.gold{border:1.5px solid #c8a24a;background:#fffdf6;box-shadow:0 6px 18px rgba(200,162,74,.14)}
.card.gold .top{background:#c8a24a}
/* 数据条（模块六） */
.stats{text-align:center;gap:12px}
.stat{background:var(--light);border:1px solid var(--line);border-radius:12px;padding:22px 12px}
.stat strong{display:block;font-size:38px;line-height:1.1;color:var(--primary);letter-spacing:-.5px}
.stat span{display:block;margin-top:6px;font-size:14px;color:var(--muted)}
/* 客户评价 */
.quote-card{background:var(--light);border:1px solid var(--line);border-radius:12px;padding:22px 22px 18px}
.quote-card p{margin:0 0 12px;color:var(--ink);font-size:15px;line-height:1.8}
.quote-card cite{font-style:normal;font-size:13.5px;color:var(--muted)}
/* 终极 CTA + 二维码 */
.final-cta{background:var(--primary);border-top:0}
.final-cta h2,.final-cta p{color:#fff}
.final-cta p{color:#cfdbef}
.final-cta .btn-ghost{border-color:#fff;color:#fff}
.final-cta .btn-ghost:hover{background:#fff;color:var(--primary)}
.qr-box{display:flex;align-items:center;gap:18px;margin-top:26px;background:rgba(255,255,255,.08);border-radius:12px;padding:16px;max-width:420px}
.qr-box .qr{width:120px;height:120px;flex:0 0 120px;border:1px dashed rgba(255,255,255,.5);border-radius:8px;color:#cfdbef;font-size:12px;display:flex;align-items:center;justify-content:center;text-align:center}
.qr-box p{margin:0;font-size:14.5px;color:#e6edfa}
/* 首屏配图框 */
.hero-shot{min-height:320px;border:1px solid var(--line);box-shadow:0 12px 30px rgba(27,58,107,.10)}
@media (max-width:860px){.qr-box{flex-wrap:wrap}}
.pain p strong{color:#a8322a;font-weight:700}
.section-lead{font-size:17px;color:var(--muted);max-width:860px;margin:-10px 0 24px;line-height:1.8}
/* 三形态方案卡（模块四） */
.card.sol h3{font-size:19px;margin:0 0 10px;line-height:1.45}
.card.sol h3 .sub{display:block;font-size:12.5px;font-weight:400;color:var(--muted);margin-top:3px;letter-spacing:.3px}
.card.sol .pitch{font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.65;margin:0 0 16px}
.card.sol .pitch strong{color:var(--accent);font-weight:700}
.card.sol .tags{margin:0;padding:14px 0 0;border-top:1px dashed var(--line)}
.card.sol .tg{margin-bottom:12px}
.card.sol .tg:last-child{margin-bottom:0}
.card.sol dt{font-size:12px;color:var(--muted);letter-spacing:.5px;margin-bottom:7px}
.card.sol dd{margin:0;display:flex;flex-wrap:wrap;gap:6px}
.card.sol .tag{display:inline-block;background:#eaeff7;color:#3d4a63;border-radius:6px;padding:4px 9px;font-size:13px;line-height:1.5}
.card.sol .tag.hot{background:#fdece6;color:#bf3c1d;border:1px solid #f3c8b8;font-weight:600}
.card.sol.gold .tag{background:#fbf3dd;color:#7a5c14}
.card.sol.gold .tag.hot{background:#c8a24a;color:#3a2c07;border-color:#c8a24a}
.card.sol .more{margin-top:14px}
/* 移动端功能清单折叠（纯 CSS，无 JS） */
.tg-input{position:absolute;opacity:0;pointer-events:none}
.tg-label{display:none}
@media (max-width:860px){
.card.sol .tags{display:none;margin-top:4px}
.tg-label{display:flex;align-items:center;justify-content:space-between;gap:8px;
margin:14px 0 0;padding:11px 14px;border:1px solid var(--line);border-radius:8px;
background:#fff;color:var(--primary);font-size:14px;font-weight:600;cursor:pointer}
.tg-label .ar{transition:transform .2s}
.tg-input:checked ~ .tags{display:block}
.tg-input:checked ~ .tg-label .ar{transform:rotate(180deg)}
.tg-input:checked ~ .tg-label{background:var(--light)}
.card.sol .tags{padding-top:12px}
}
.more-link{margin:18px 0 0;font-size:15px}
.more-link a{color:var(--accent);font-weight:600}
.more-link a:hover{text-decoration:underline}
/* 左菜单 + 右图 Tab（纯 CSS，radio 实现） */
.tabs{display:grid;grid-template-columns:236px 1fr;gap:34px;align-items:stretch;margin-top:6px}
.tabs input{position:absolute;opacity:0;pointer-events:none}
.tab-menu{grid-column:1;display:flex;flex-direction:column;justify-content:center;gap:10px}
.tab-menu label{display:block;padding:16px 18px;border-left:3px solid var(--line);
border-radius:0 8px 8px 0;color:var(--muted);font-size:15.5px;line-height:1.5;
cursor:pointer;transition:.15s}
.tab-menu label:hover{background:var(--light);color:var(--primary)}
#tab1:checked ~ .tab-menu label:nth-of-type(1),
#tab2:checked ~ .tab-menu label:nth-of-type(2),
#tab3:checked ~ .tab-menu label:nth-of-type(3){background:var(--light);
border-left-color:var(--accent);color:var(--primary);font-weight:600}
.tab-panes{grid-column:2;grid-row:1;min-width:0}
.pane{display:none}
.pane h3{font-size:21px;margin:0 0 10px;line-height:1.45}
.pane>p{color:var(--muted);margin:0 0 18px;font-size:15.5px;max-width:760px}
#tab1:checked ~ .tab-panes .p1,
#tab2:checked ~ .tab-panes .p2,
#tab3:checked ~ .tab-panes .p3{display:block}
/* 仿真界面框（临时占位，替换时改 ![]()
） */
.shot-frame{width:100%;border:1px solid var(--line);border-radius:12px;overflow:hidden;
background:#fff;box-shadow:0 12px 28px rgba(27,58,107,.10);aspect-ratio:16/9;
display:flex;flex-direction:column}
.shot-frame.plain{aspect-ratio:auto;border:0;background:none;box-shadow:none;
align-items:center;justify-content:center;min-height:300px}
.mock{flex:1;display:flex;flex-direction:column;background:#fbfcfe;overflow:hidden;min-height:0}
.mock-bar{display:flex;align-items:center;gap:5px;padding:9px 13px;background:#f2f5fa;border-bottom:1px solid #e6ebf4}
.mock-bar i{width:8px;height:8px;border-radius:50%;background:#dbe2ec;display:block}
.mock-bar em{margin-left:10px;font-style:normal;font-size:11.5px;color:#7c8698}
.mock-body{flex:1;display:flex;min-height:0}
.mock-side{width:92px;flex:0 0 92px;background:#f7f9fc;border-right:1px solid #e9eef6;padding:12px 9px}
.mock-side span{display:block;height:7px;border-radius:3px;background:#e5eaf3;margin-bottom:10px}
.mock-side span.on{background:#c6d4e8}
.mock-main{flex:1;padding:12px 14px;min-width:0;overflow:hidden}
.mock-tb{width:100%;border-collapse:collapse;font-size:11.5px;table-layout:fixed}
.mock-tb th{background:#f4f7fc;color:#6e788a;font-weight:600;text-align:left;
padding:7px 8px;border-bottom:1px solid #e6ebf4;white-space:nowrap;overflow:hidden}
.mock-tb td{padding:7px 8px;border-bottom:1px solid #f0f3f8;color:#4a5568;
white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chip{display:inline-block;padding:1px 7px;border-radius:20px;font-size:10.5px;background:#eaf0f9;color:#3f5b86}
.chip.ok{background:#e6f6ec;color:#2f7a4e}
.chip.warn{background:#fdeee6;color:#b4532a}
/* 手机仿真 */
.phone{width:240px;border:8px solid #1d2733;border-radius:26px;background:#fff;overflow:hidden;
box-shadow:0 16px 34px rgba(20,35,60,.20)}
.phone-top{height:24px;background:#1d2733;display:flex;align-items:center;justify-content:center}
.phone-top i{width:48px;height:5px;border-radius:3px;background:#3c4a5c}
.phone-body{padding:12px;background:#f6f8fb}
.p-head{font-size:12px;color:#1b3a6b;font-weight:700;margin-bottom:10px}
.p-card{background:#fff;border:1px solid #e8edf5;border-radius:10px;padding:10px;margin-bottom:8px}
.p-row{display:flex;justify-content:space-between;font-size:11px;color:#5b667a;margin-bottom:6px}
.p-row b{color:#1b3a6b}
.p-btn{background:#e4572e;color:#fff;text-align:center;border-radius:8px;padding:9px;font-size:12px;font-weight:600}
@media (max-width:860px){
.tabs{grid-template-columns:1fr;gap:0}
.tab-menu{grid-column:1;grid-row:auto;flex-direction:row;gap:0;justify-content:flex-start;
border-bottom:1px solid var(--line);overflow-x:auto}
.tab-menu label{flex:0 0 auto;padding:12px 14px;border-left:0;border-bottom:2px solid transparent;border-radius:0}
#tab1:checked ~ .tab-menu label:nth-of-type(1),
#tab2:checked ~ .tab-menu label:nth-of-type(2),
#tab3:checked ~ .tab-menu label:nth-of-type(3){background:none;border-bottom-color:var(--accent)}
.tab-panes{grid-column:1;grid-row:auto;margin-top:18px}
.pane h3{font-size:19px}
.shot-frame{aspect-ratio:4/3}
.shot-frame.plain{min-height:260px}
}
/* 换成真实截图时： */
.shot-frame img{width:100%;height:100%;object-fit:cover;display:block}
.quote-card .ic{display:block;font-size:20px;line-height:1;margin-bottom:10px;opacity:.75}
.tab-caption{margin:16px 0 0;padding:10px 16px;border-left:3px solid var(--accent);
background:var(--light);border-radius:0 8px 8px 0;color:#4a5568;font-size:14.5px;line-height:1.7}
/* 产品页：金句条 */
.insight{margin:20px 0 0;padding:14px 18px;background:var(--light);
border-left:3px solid var(--primary);border-radius:0 8px 8px 0;
color:#3d4a63;font-size:15.5px;line-height:1.8}
.insight strong{color:var(--primary)}
/* 产品页：界面 Tab 占位框 */
.shot-frame.placeholder{display:flex;align-items:center;justify-content:center;
color:#9aa3b5;font-size:14px;background:#fff}
/* 产品页：能力卡图标 */
.card h3 .em{margin-right:6px}
/* 第 4 个 Tab（产品页界面） */
#tab4:checked ~ .tab-menu label:nth-of-type(4){background:var(--light);
border-left-color:var(--accent);color:var(--primary);font-weight:600}
#tab4:checked ~ .tab-panes .p4{display:block}
@media (max-width:860px){
#tab4:checked ~ .tab-menu label:nth-of-type(4){background:none;border-bottom-color:var(--accent)}
}
/* 卡片内要点列表（模块总览） */
.card .mini{list-style:none;padding:0;margin:12px 0 0}
.card .mini li{position:relative;padding-left:14px;font-size:14px;color:#55607a;line-height:1.85}
.card .mini li::before{content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;
border-radius:50%;background:var(--accent);opacity:.75}
.card.gold .mini li::before{background:#c8a24a}
/* table 移动端压缩 */
@media (max-width:560px){
.tbl{font-size:13px}
.tbl th,.tbl td{padding:8px 9px}
}
/* 模块详情：PC + 移动端 双端图 */
.devices{display:grid;grid-template-columns:1fr 260px;gap:26px;align-items:start;margin-top:6px}
.device-phone{display:flex;justify-content:center}
.phone-mock{width:100%;max-width:250px;aspect-ratio:9/19.5;border:8px solid #1d2733;
border-radius:26px;background:#fff;box-shadow:0 14px 30px rgba(20,35,60,.16);
display:flex;align-items:center;justify-content:center;text-align:center;
padding:16px;color:#9aa3b5;font-size:12.5px;line-height:1.6}
.devices .shot-frame{aspect-ratio:16/10}
.devices .cap{margin:10px 0 0;font-size:13px;color:var(--muted);text-align:center}
@media (max-width:860px){
.devices{grid-template-columns:1fr;gap:18px}
.phone-mock{max-width:200px}
}
/* ===== 解决方案页 ===== */
html{scroll-behavior:smooth}
.section{scroll-margin-top:80px}
.anchors{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px}
.anchor-card{display:block;padding:22px 20px;background:#fff;border:1px solid var(--line);
border-radius:14px;box-shadow:0 8px 22px rgba(27,58,107,.07);transition:.18s}
.anchor-card:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(27,58,107,.13);border-color:#c9d6ea}
.anchor-card .ic{font-size:22px;display:block;margin-bottom:8px}
.anchor-card strong{display:block;color:var(--primary);font-size:16.5px;margin-bottom:4px}
.anchor-card em{font-style:normal;color:var(--muted);font-size:13.5px}
.split{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);
border-radius:16px;overflow:hidden;margin-top:8px}
.split .side{padding:30px 28px}
.split .pain-side{background:#33383f;color:#e7ebf1}
.split .sol-side{background:#fff}
.split.rev .pain-side{order:2}
.split.rev .sol-side{order:1}
.side-t{font-size:13px;letter-spacing:1.5px;margin:0 0 16px;font-weight:700}
.pain-side .side-t{color:#f0906f}
.sol-side .side-t{color:var(--accent)}
ul.duo{list-style:none;padding:0;margin:0}
ul.duo li{padding:12px 0;border-bottom:1px solid rgba(0,0,0,.07)}
.pain-list li{border-bottom-color:rgba(255,255,255,.12)}
ul.duo li:last-child{border-bottom:0}
ul.duo strong{display:block;font-size:15.5px;margin-bottom:3px}
.pain-list strong{color:#fff}
.pain-list span{color:#b6bfcc;font-size:14px;line-height:1.7}
.sol-list strong{color:var(--primary)}
.sol-list span{color:#5b667a;font-size:14px;line-height:1.7}
.sol-list strong::before{content:"✓ ";color:var(--accent);font-weight:700}
.pain-list strong::before{content:"✕ ";color:#f0906f;font-weight:700}
.vline{margin:26px 0 0;font-size:clamp(19px,2.3vw,26px);font-weight:700;color:var(--primary);
line-height:1.55;letter-spacing:.3px}
.vline strong{color:var(--accent)}
.painrow{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:26px}
.pain-mini{background:rgba(255,255,255,.06);border-left:3px solid #f0906f;border-radius:0 10px 10px 0;
padding:14px 16px;color:#cfd8e5;font-size:14px;line-height:1.7}
.pain-mini span{color:#f0906f;font-weight:700;margin-right:6px}
.band-dark{background:#12233f;border-top:0}
.band-dark h2,.band-dark h3{color:#fff}
.band-dark p{color:#c3d0e4}
.band-dark .card{background:rgba(255,255,255,.055);border-color:rgba(255,255,255,.14)}
.band-dark .card p{color:#b9c6dc}
.band-dark .card .top{background:#c8a24a}
.band-dark .vline{color:#fff}
.band-soft{background:var(--light)}
@media (max-width:860px){
.anchors{grid-template-columns:1fr 1fr}
.split{grid-template-columns:1fr}
.split.rev .pain-side{order:1}
.split.rev .sol-side{order:2}
.split .side{padding:24px 20px}
.painrow{grid-template-columns:1fr}
}
/* 场景内联咨询条 */
.inline-cta{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
margin:26px 0 0;padding:16px 20px;background:#f2f5fa;border-radius:12px;
border-left:3px solid var(--accent)}
.inline-cta p{margin:0;font-size:15px;color:#3d4a63;line-height:1.7;max-width:720px}
.inline-cta .btn-primary{margin-left:0;flex:0 0 auto}
.band-dark .inline-cta{background:rgba(255,255,255,.07);border-left-color:#c8a24a}
.band-dark .inline-cta p{color:#dbe4f2}
@media (max-width:560px){
.inline-cta{flex-direction:column;align-items:stretch}
.inline-cta .btn-primary{text-align:center}
}
/* 痛点 / 解法 严格对齐对照表 */
.duel{border:1px solid var(--line);border-radius:16px;overflow:hidden;margin-top:8px}
.duel-head{display:grid;grid-template-columns:1fr 1fr}
.duel-head span{padding:12px 24px;font-size:12.5px;letter-spacing:1.5px;font-weight:700}
.duel-head span:first-child{background:#2b3037;color:#f0906f}
.duel-head span:last-child{background:#fff;color:var(--accent);border-bottom:1px solid var(--line)}
.duel-row{display:grid;grid-template-columns:1fr 1fr}
.duel-row .cell{padding:20px 24px;border-top:1px solid rgba(255,255,255,.10)}
.duel-row .cell strong{display:block;font-size:15.5px;margin-bottom:5px}
.duel-row .cell span{font-size:14px;line-height:1.72}
.duel-row .pain{background:#33383f}
.duel-row .pain strong{color:#fff}
.duel-row .pain strong::before{content:"✕ ";color:#f0906f}
.duel-row .pain span{color:#b6bfcc}
.duel-row .sol{background:#fff;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.duel-row .sol strong{color:var(--primary)}
.duel-row .sol strong::before{content:"✓ ";color:var(--accent)}
.duel-row .sol span{color:#5b667a}
@media (max-width:860px){
.duel-head{grid-template-columns:1fr;gap:0}
.duel-head span:last-child{padding-top:8px}
.duel-row{grid-template-columns:1fr}
.duel-row .sol{border-left:0}
}
/* 深色区块里的对照表 */
.band-dark .duel{border-color:rgba(255,255,255,.16)}
.band-dark .duel-head span:first-child{background:rgba(0,0,0,.28);color:#f0906f}
.band-dark .duel-head span:last-child{background:rgba(255,255,255,.05);color:#c8a24a;
border-bottom:1px solid rgba(255,255,255,.14)}
.band-dark .duel-row .pain{background:rgba(0,0,0,.24)}
.band-dark .duel-row .pain strong{color:#fff}
.band-dark .duel-row .pain span{color:#a9b4c4}
.band-dark .duel-row .sol{background:rgba(255,255,255,.045);
border-top:1px solid rgba(255,255,255,.12);border-left:1px solid rgba(255,255,255,.12)}
.band-dark .duel-row .sol strong{color:#fff}
.band-dark .duel-row .sol strong::before{color:#c8a24a}
.band-dark .duel-row .sol span{color:#bcc8db}
.band-dark .duel-row .cell{border-top-color:rgba(255,255,255,.12)}
/* 痛点 / 解法 关键词高亮 */
.duel .hl-r{font-style:normal;color:#ff9d7a;font-weight:700;background:rgba(240,144,111,.13);
padding:0 4px;border-radius:4px}
.duel .hl-g{font-style:normal;color:#a8791f;font-weight:700}
.band-dark .duel .hl-g{color:#e8c982}
/* 每行等高，左右视觉对齐 */
.duel-row .cell{display:flex;flex-direction:column;justify-content:flex-start;min-height:92px}
.duel-row .cell span{flex:1}
/* 案例卡（数据跳出来） */
.case-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 22px 18px;
display:flex;flex-direction:column}
.case-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.case-head .cic{font-size:26px;line-height:1;flex:0 0 auto}
.case-head strong{display:block;color:var(--primary);font-size:15.5px;line-height:1.35}
.case-head em{font-style:normal;font-size:12.5px;color:var(--muted);display:block;margin-top:2px}
.case-num{margin:0 0 12px;display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.case-num b{font-size:38px;line-height:1;color:var(--accent);letter-spacing:-1px;font-weight:800}
.case-num span{font-size:13.5px;color:var(--muted)}
.case-desc{margin:0 0 14px;font-size:14.5px;color:#55607a;line-height:1.75}
.case-quote{margin:auto 0 0;padding:12px 14px;background:var(--light);border-radius:10px;
font-size:13.5px;color:#6b7590;line-height:1.7;border-left:2px solid #cfd8e6}
@media (max-width:860px){
.case-num b{font-size:32px}
}
/* 知识页：指南卡片 */
.kn-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 20px 16px;
display:flex;flex-direction:column;transition:.15s}
.kn-card:hover{border-color:#c9d6ea;box-shadow:0 10px 24px rgba(27,58,107,.09)}
.kn-badge{display:inline-block;align-self:flex-start;font-size:11.5px;letter-spacing:.5px;
color:#8a6a1f;background:#fbf3dd;border-radius:4px;padding:2px 8px;margin-bottom:10px}
.kn-badge.live{color:#2f7a4e;background:#e9f6ee}
.kn-card h3{font-size:16.5px;line-height:1.55;margin:0 0 10px;color:var(--primary)}
.kn-inc{margin:0 0 14px;font-size:13.5px;color:var(--muted);line-height:1.75}
.kn-inc b{color:#3d4a63;font-weight:600;margin-right:6px}
.kn-card .more{margin-top:auto;font-size:14px}
/* 知识卡片：热门角标 + 动作型按钮 */
.kb-card{position:relative}
.kb-card .kb-hot{position:absolute;top:-9px;right:14px;background:#e4572e;color:#fff;
font-size:11.5px;line-height:1;padding:5px 9px;border-radius:20px;
box-shadow:0 4px 10px rgba(228,87,46,.28);letter-spacing:.3px}
.kb-card a.more{font-weight:600}
/* 无正文页（如 FAQ）：问答区贴紧首屏，去掉双倍留白与分隔线 */
.section.faq.no-body{padding-top:28px;border-top:0}
/* 横向流程（关于我们 · 服务方式） */
.flow{gap:16px}
.flow-item{position:relative;background:var(--light);border:1px solid var(--line);
border-radius:12px;padding:22px 18px 18px;border-top:3px solid var(--primary)}
.flow-item .fn{display:inline-block;font-size:12px;font-weight:700;color:var(--accent);
letter-spacing:1px;margin-bottom:8px}
.flow-item strong{display:block;color:var(--primary);font-size:15.5px;line-height:1.45;margin-bottom:6px}
.flow-item p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.7}
@media (max-width:860px){
.flow.grid-4{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
.flow.grid-4{grid-template-columns:1fr}
}
/* 详情页底部：关联模块 */
.related{margin:22px 0 0;padding:14px 18px;background:var(--light);border-radius:10px;
font-size:14.5px;color:#4a5568;line-height:1.9}
.related b{color:var(--primary);font-weight:600;margin-right:6px}
.related a{color:var(--accent)}
.related a:hover{text-decoration:underline}
/* 真实流程图 / 截图 */
.figure{margin:0 0 22px}
.figure img{display:block;width:100%;height:auto;background:#fff;
border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 26px rgba(27,58,107,.08)}
.figure figcaption{margin-top:10px;font-size:13.5px;color:var(--muted);text-align:center}
/* 业务链路示意（不暴露流程细节） */
.chain{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin:6px 0 4px;
padding:20px;background:var(--light);border:1px solid var(--line);border-radius:12px}
.chain .node{display:inline-block;padding:8px 14px;border-radius:8px;background:#fff;
border:1px solid #d9e1ee;color:#3d4a63;font-size:14px;line-height:1.4;white-space:nowrap}
.chain .node.key{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.chain .node.end{background:#fdf0ea;border-color:#f3c8b8;color:#bf3c1d;font-weight:600}
.chain .arrow{color:#b9c3d4;font-size:14px}
@media (max-width:560px){
.chain{padding:14px;gap:7px}
.chain .node{font-size:13px;padding:6px 10px}
}
/* ===== AI 方案 ===== */
.ai-grid{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;margin:12px 0 6px}
.ai-card{flex:1 1 300px;max-width:calc(33.333% - 12px);background:#fff;border:1px solid var(--line);
border-radius:14px;padding:26px 22px 22px;box-shadow:0 8px 22px rgba(27,58,107,.07);
position:relative;transition:.18s}
.ai-card:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(27,58,107,.13);border-color:#c9d6ea}
.ai-card::before{content:"";position:absolute;left:22px;top:0;width:38px;height:3px;border-radius:0 0 3px 3px;
background:linear-gradient(90deg,#1b3a6b,#c8a24a)}
.ai-role{display:inline-block;font-size:12px;letter-spacing:.4px;color:#8a6a1f;background:#fbf3e2;
border:1px solid #f0e0bd;border-radius:20px;padding:3px 10px;margin-bottom:10px}
.ai-card h3{font-size:18px;margin:0;line-height:1.45}
.ai-card h3 span{display:block;font-size:13px;font-weight:400;color:var(--muted);margin-top:3px}
.ai-cap{font-size:13px;color:#a8791f;font-weight:600;margin:11px 0 8px;letter-spacing:.2px}
.ai-card p.scene{font-size:14.5px;color:#55607a;margin:0}
.ai-line{margin:15px 0 0;padding-left:10px;border-left:3px solid var(--accent);
font-size:13.5px;color:var(--primary);font-weight:600}
.band-dark .ai-card{background:rgba(255,255,255,.055);border-color:rgba(255,255,255,.14)}
.band-dark .ai-card h3{color:#fff}
.band-dark .ai-card p.scene{color:#b9c6dc}
.band-dark .ai-cap{color:#e8c982}
.band-dark .ai-line{color:#fff;border-left-color:#c8a24a}
.band-dark .ai-role{background:rgba(200,162,74,.16);border-color:rgba(200,162,74,.38);color:#e8c982}
@media (max-width:860px){
.ai-card{max-width:calc(50% - 9px);flex-basis:calc(50% - 9px)}
}
@media (max-width:560px){
.ai-card{max-width:100%;flex-basis:100%}
}
/* 首页 AI 入口条 */
.ai-strip{display:grid;grid-template-columns:1.1fr 1fr;gap:26px;align-items:center;margin-top:22px;
padding:26px 28px;border-radius:16px;
background:linear-gradient(120deg,#1b3a6b,#264b83 62%,#2f5e9e);
box-shadow:0 14px 34px rgba(27,58,107,.22)}
.ai-strip .tag-ai{display:inline-block;font-size:12px;letter-spacing:1px;color:#ffe0a8;
background:rgba(200,162,74,.2);border:1px solid rgba(200,162,74,.5);border-radius:20px;
padding:3px 10px;margin-bottom:10px}
.ai-strip h3{color:#fff;font-size:19px;margin:0 0 7px;line-height:1.5}
.ai-strip p{color:#c3d0e4;font-size:14px;margin:0}
.ai-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px}
.ai-chips span{font-size:13px;color:#e7eefb;background:rgba(255,255,255,.1);
border:1px solid rgba(255,255,255,.18);border-radius:8px;padding:5px 10px}
.ai-strip .btn{background:#fff;color:var(--primary);border:1px solid #fff}
.ai-strip .btn:hover{background:#f2f5fa}
@media (max-width:860px){
.ai-strip{grid-template-columns:1fr;padding:22px 20px;gap:18px}
}
/* ===== 移动端导航（纯 CSS，无 JS） ===== */
.nav-toggle{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.burger{display:none}
.nav .nav-cta{display:none}
@media (max-width:860px){
.header-inner{position:relative;height:58px;gap:10px}
.brand{font-size:18px}
.brand span{font-size:10px;letter-spacing:1.8px;margin-left:6px}
.header-inner > .header-demo{padding:8px 14px;font-size:13.5px;white-space:nowrap;
order:2;margin-left:auto}
.burger{display:flex;order:3;margin-left:8px;width:40px;height:34px;flex:0 0 40px;
align-items:center;justify-content:center;position:relative;cursor:pointer;
border-radius:8px;background:rgba(255,255,255,.12)}
.burger span{position:absolute;left:10px;right:10px;height:2px;background:#fff;
border-radius:2px;transition:transform .2s,opacity .2s,top .2s}
.burger span:nth-child(1){top:11px}
.burger span:nth-child(2){top:16px}
.burger span:nth-child(3){top:21px}
.nav{display:none;position:absolute;top:100%;left:-24px;right:-24px;margin:0;
flex-direction:column;gap:0;background:#1b3a6b;
border-top:1px solid rgba(255,255,255,.14);border-radius:0 0 14px 14px;
padding:6px 0 16px;box-shadow:0 20px 36px rgba(9,22,44,.38);z-index:40}
.nav a{padding:14px 24px;font-size:16px;color:#dbe4f5;
border-bottom:1px solid rgba(255,255,255,.08)}
.nav a:active{background:rgba(255,255,255,.08)}
.nav a.on{color:#fff;font-weight:600;box-shadow:none;background:rgba(255,255,255,.07);
border-left:3px solid var(--accent);padding-left:21px}
.nav .nav-cta{display:block;margin:14px 24px 0;padding:12px 0;text-align:center;
border-bottom:0;background:var(--accent);color:#fff;border-radius:8px;
font-size:15px;font-weight:600;border-left:0}
.nav-toggle:checked ~ .nav{display:flex}
.nav-toggle:checked ~ .burger span:nth-child(1){top:16px;transform:rotate(45deg)}
.nav-toggle:checked ~ .burger span:nth-child(2){opacity:0}
.nav-toggle:checked ~ .burger span:nth-child(3){top:16px;transform:rotate(-45deg)}
}
/* ===== 企业微信弹窗（纯 CSS） ===== */
.js-wx{cursor:pointer}
/* 隐藏 checkbox：必须 fixed 钉在视口内。用 absolute 时其静态位置在 之后（页面底部），
label for 点击会把焦点交给 checkbox，浏览器为显示焦点元素会自动滚到页面底部。 */
.modal-toggle{position:fixed;top:0;left:0;width:1px;height:1px;opacity:0;pointer-events:none;z-index:-1}
.wx-modal{display:none;position:fixed;inset:0;z-index:300;align-items:center;justify-content:center;padding:24px}
.modal-toggle:checked ~ .wx-modal{display:flex}
.wx-bg{position:absolute;inset:0;background:rgba(9,22,44,.66);backdrop-filter:blur(3px)}
@media (max-width:400px){
.brand span{display:none}
}
/* ===== 数智化落地服务 ===== */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:12px 0 8px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 22px 20px;
position:relative;box-shadow:0 8px 22px rgba(27,58,107,.06);transition:.18s}
.svc-card:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(27,58,107,.12);border-color:#c9d6ea}
.svc-card::before{content:"";position:absolute;left:22px;top:0;width:34px;height:3px;
border-radius:0 0 3px 3px;background:linear-gradient(90deg,#1b3a6b,#c8a24a)}
.svc-no{display:block;font-size:12px;font-weight:700;letter-spacing:1.5px;color:#c8a24a;margin-bottom:6px}
.svc-card h3{font-size:18.5px;font-weight:700;margin:0 0 9px;letter-spacing:.3px;color:var(--primary);line-height:1.4}
.svc-card p{font-size:13.5px;color:#8b95a7;margin:0;line-height:1.8}
.band-dark .svc-card{background:rgba(255,255,255,.055);border-color:rgba(255,255,255,.14)}
.band-dark .svc-card h3{color:#fff}
.band-dark .svc-card p{color:#b9c6dc}
.band-soft .svc-card{background:#fff}
@media (max-width:860px){
.svc-grid{grid-template-columns:1fr 1fr;gap:14px}
.svc-card{padding:20px 18px 18px}
}
@media (max-width:560px){
.svc-grid{grid-template-columns:1fr}
}
/* 服务板块：4 列与图标、重点词高亮 */
.svc-grid.cols-4{grid-template-columns:repeat(4,1fr)}
.svc-ico{display:block;font-size:20px;line-height:1;margin-bottom:10px}
.svc-card .hl{font-style:normal;color:var(--primary);font-weight:600}
.band-dark .svc-card .hl{color:#e8c982}
@media (max-width:980px){
.svc-grid.cols-4{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
.svc-grid.cols-4{grid-template-columns:1fr}
}
/* 服务六步：两阶段分组 */
.svc-phases{display:grid;gap:16px;margin:14px 0 8px}
.svc-phase{position:relative;border-radius:16px;padding:34px 18px 18px;border:1px solid var(--line)}
.svc-phase.base{background:#f4f6f9}
.svc-phase.boost{background:#eef4fb}
.svc-tag{position:absolute;top:12px;left:18px;font-size:12px;letter-spacing:1.5px;
font-weight:700;padding:3px 10px;border-radius:20px;background:#fff;border:1px solid var(--line)}
.svc-phase.base .svc-tag{color:var(--primary)}
.svc-phase.boost .svc-tag{color:#c2410c;border-color:#f3cbb8;background:#fdf1ea}
.svc-phase .svc-grid{margin:0}
.svc-phase.base .svc-no{color:#1b3a6b}
.svc-phase.boost .svc-no{color:var(--accent)}
.svc-phase .svc-card{background:#fff}
/* 桌面端：同排卡片之间虚线引导 */
@media (min-width:861px){
.svc-phase .svc-grid .svc-card + .svc-card::after{content:"";position:absolute;left:-16px;
top:50%;width:16px;border-top:1.5px dashed #c3cddd}
}
@media (max-width:560px){
.svc-phase{padding:32px 12px 12px}
}
/* AI 卡片标签 */
.ai-tags{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 10px}
.ai-tags span{font-size:12px;color:var(--primary);background:#eef3fa;border:1px solid #d8e2f2;
border-radius:6px;padding:3px 8px;letter-spacing:.2px}
