:root{--navy:#062d55;
--blue:#0877ba;
--cyan:#21b7d9;
--lime:#8fbe55;
--ink:#102233;
--muted:#5e7180;
--line:#dce7ee;
--paper:#f7fafb}*{box-sizing:border-box}body{margin:0;
color:var(--ink);
font:16px/1.75,"Microsoft YaHei",system-ui,sans-serif}.wrap{width:min(1120px,calc(100% - 40px));
margin:auto}.top{background:var(--navy);
color:#fff}.nav{min-height:84px;
display:flex;
align-items:center;
justify-content:space-between;
gap:24px}.brand{display:flex;
align-items:center;
gap:12px;
color:#fff;
text-decoration:none}.brand img{width:66px;
height:52px;
object-fit:contain}.brand b{font-size:19px;
letter-spacing:.08em}.navlinks{display:flex;
gap:22px;
flex-wrap:wrap}.navlinks a{color:#d7eaf2;
text-decoration:none;
font-size:14px}.hero{padding:76px 0 65px;
background:linear-gradient(118deg,#062d55,#0877ba);
color:#fff}.eyebrow{color:#a7dfef;
letter-spacing:.14em;
font-size:12px;
font-weight:800;
text-transform:uppercase}.hero h1{font-size:clamp(34px,5vw,56px);
line-height:1.15;
margin:13px 0}.hero p{max-width:720px;
color:#dcecf5;
font-size:18px}.crumb{padding:18px 0;
color:var(--muted);
font-size:14px}.crumb a{color:#0877ba;
text-decoration:none}.section{padding:66px 0}.grid{display:grid;
grid-template-columns:1fr 320px;
gap:64px}.section h2{font-size:29px;
line-height:1.25;
margin-top:0}.section h3{font-size:20px;
margin:30px 0 8px}.copy{color:#4d6271}.aside{background:var(--paper);
padding:25px;
height:max-content;
border-top:4px solid var(--cyan)}.aside a{display:block;
padding:10px 0;
border-bottom:1px solid var(--line);
color:var(--ink);
text-decoration:none}.pill{display:inline-block;
padding:5px 10px;
margin:4px 5px 4px 0;
background:#e9f6fa;
color:#075b8b;
font-size:13px;
border-radius:99px}.note{padding:18px 20px;
background:#f1f8e9;
border-left:4px solid var(--lime);
margin-top:25px;
color:#435b33}.cards{display:grid;
grid-template-columns:repeat(2,1fr);
gap:18px}.card{border:1px solid var(--line);
padding:25px;
text-decoration:none;
color:var(--ink)}.card:hover{border-color:var(--cyan);
box-shadow:0 12px 28px rgba(8,119,186,.1)}.card h2{font-size:22px;
margin:0 0 9px}.media-grid{display:grid;
grid-template-columns:repeat(3,1fr);
gap:14px;
margin:18px 0 14px}.media-grid figure{margin:0;
background:var(--paper);
border:1px solid var(--line)}.media-grid img{display:block;
width:100%;
height:210px;
object-fit:cover}.media-grid figcaption{padding:9px 11px;
font-size:13px;
color:var(--muted)}.video-grid{display:grid;
grid-template-columns:repeat(3,1fr);
gap:14px}.video-grid video{display:block;
width:100%;
background:#041d36;
aspect-ratio:9/16;
object-fit:cover}.media-note{font-size:13px;
color:var(--muted);
margin:10px 0 32px}.footer{background:#041d36;
color:#acc3d1;
padding:30px 0 148px;
font-size:13px}.cta{margin-top:38px;
padding:25px;
background:var(--navy);
color:#fff;
display:flex;
justify-content:space-between;
gap:18px;
align-items:center}.cta a{background:var(--lime);
color:#16370c;
padding:10px 16px;
text-decoration:none;
font-weight:800}@media(max-width:760px){.nav{padding:14px 0;
align-items:flex-start;
flex-direction:column}.grid{grid-template-columns:1fr;
gap:35px}.cards,.media-grid,.video-grid{grid-template-columns:1fr}.media-grid img{height:auto}.hero{padding:55px 0}.cta{display:block}.cta a{display:inline-block;
margin-top:14px}}
.assistant-card{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);text-align:center}.assistant-card img{width:min(190px,100%);height:210px;object-fit:contain;object-position:center bottom;display:block;margin:0 auto 8px}.assistant-card strong,.assistant-card span{display:block}.assistant-card strong{font-size:17px;color:var(--navy)}.assistant-card span{font-size:13px;color:var(--muted);margin:2px 0 12px}.assistant-card .assistant-call{display:inline-block;background:var(--navy);color:#fff;border:0;padding:8px 16px;text-decoration:none;font-size:14px}
.brand-full{display:flex;flex-direction:column;line-height:1.25}.brand-full b{font-size:15px;letter-spacing:.02em;white-space:nowrap}.brand-full small{font:700 8px/1 Arial,sans-serif;letter-spacing:.02em;color:#a9d8e5;white-space:nowrap;margin-top:5px}.brand-name b{font-size:16px;letter-spacing:.02em;white-space:nowrap}.brand-name small{font:700 8px/1 Arial,sans-serif;letter-spacing:.02em;text-transform:none}
.related-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:20px 0}.related-links a,.related-links span{display:block;border:1px solid var(--line);padding:13px 14px;color:var(--ink);background:#fff;text-decoration:none;font-size:14px}.related-links a:hover{border-color:var(--cyan);color:#0877ba}.topic-card{min-height:230px;transition:.2s ease}.topic-card h3{font-size:22px;line-height:1.3;margin:14px 0 10px}.topic-card p{margin:0;color:var(--muted);font-size:14px}.num{font-size:12px;color:#1685b3;font-weight:800;letter-spacing:.06em}@media(max-width:760px){.related-links{grid-template-columns:1fr}}
.updated{color:var(--muted);font-size:13px;margin:18px 0 0}
.about-intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.78fr);gap:32px;align-items:center;margin-bottom:42px}.about-intro h2{margin-bottom:13px}.about-intro .copy{margin:0 0 15px}.about-visual{margin:0;overflow:hidden;border:1px solid var(--line);background:#f4fbfe}.about-visual img{display:block;width:100%;height:auto}.about-visual figcaption{padding:10px 12px;color:var(--muted);font-size:12px;line-height:1.55}.service-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0 42px}.service-steps>div{padding:17px 15px;border:1px solid var(--line);background:#fff}.service-steps b{display:block;color:var(--navy);font-size:14px}.service-steps p{margin:8px 0 0;color:var(--muted);font-size:13px;line-height:1.7}@media(max-width:760px){.about-intro,.service-steps{grid-template-columns:1fr}}
.navlinks{align-items:center}.navlinks .nav-phone{display:inline-block;background:var(--lime);color:#16370c;padding:8px 13px;border-radius:3px;font-weight:800;opacity:1;white-space:nowrap}.site-assistant{position:fixed;right:24px;bottom:24px;z-index:20;display:flex;align-items:center;gap:10px;width:278px;min-height:82px;padding:8px 13px 8px 8px;background:#fff;border:1px solid #cfe4ed;border-radius:8px;box-shadow:0 14px 34px rgba(4,29,54,.22)}.site-assistant img{width:58px;height:66px;object-fit:contain;object-position:center bottom;flex:0 0 58px;border-radius:5px;background:#e9f6fa}.site-assistant-copy{display:grid;gap:1px;min-width:0}.site-assistant b{font-size:15px;color:var(--navy)}.site-assistant span{font-size:12px;color:var(--muted)}.site-assistant a{display:inline-block;margin-top:4px;color:#0877ba;font-weight:800;text-decoration:none;font-size:16px;letter-spacing:.02em}@media(max-width:760px){.site-assistant{right:12px;bottom:12px;width:238px;min-height:70px;padding:6px 10px 6px 6px}.site-assistant img{width:48px;height:58px;flex-basis:48px}.site-assistant b{font-size:14px}.site-assistant a{font-size:15px}.navlinks .nav-phone{padding:7px 11px}}
/* 2026-11-02 联系入口增强：卡片加微信按钮 + 二维码浮层 + 页脚联系信息 */
.sa-wechat{display:inline-block;margin-top:5px;padding:3px 11px;border:1px solid #0877ba;border-radius:4px;background:#eef8fb;color:#0877ba;font:800 13px/1.6 "Microsoft YaHei",system-ui,sans-serif;cursor:pointer}
.sa-wechat:hover{background:#0877ba;color:#fff}
.sa-qr{position:fixed;inset:0;z-index:60;display:none;align-items:center;justify-content:center;background:rgba(4,29,54,.74);padding:20px}
.sa-qr.open{display:flex}
.sa-qr-box{background:#fff;border-radius:10px;padding:18px;max-width:330px;width:100%;text-align:center;box-shadow:0 20px 50px rgba(0,0,0,.35)}
.sa-qr-box img{width:100%;height:auto;border-radius:6px;display:block}
.sa-qr-box b{display:block;margin:13px 0 5px;font-size:16px;color:#062d55}
.sa-qr-box span{display:block;font-size:13px;color:#5e7180;line-height:1.6}
.sa-qr-close{margin-top:15px;padding:8px 22px;border:0;border-radius:4px;background:#062d55;color:#fff;font:800 14px/1.5 "Microsoft YaHei",system-ui,sans-serif;cursor:pointer}
.footer-contact{display:flex;flex-wrap:wrap;gap:8px 26px;margin-top:14px;padding-top:14px;border-top:1px solid rgba(255,255,255,.1)}
.footer-contact a,.footer-contact span{color:#acc3d1;text-decoration:none;font-size:13px;line-height:1.8}
.footer-contact a:hover{color:#b4e5f5;text-decoration:underline}
.footer-contact b{color:#d6e6ef;font-weight:800}
@media(max-width:760px){.footer-contact{gap:6px 16px}.sa-qr-box{max-width:290px;padding:14px}}
/* 2026-11-02 卡片加入 400 统一号码 */
.site-assistant{min-height:104px}
.sa-actions{display:flex;align-items:center;gap:7px;margin-top:3px}
.sa-hotline{display:inline-block;color:#5e7180;font:700 12px/1.6 "Microsoft YaHei",system-ui,sans-serif;text-decoration:none;white-space:nowrap}
.sa-hotline:hover{color:#0877ba}
@media(max-width:760px){.site-assistant{min-height:92px}.sa-hotline{font-size:11px}}
/* 2026-11-02 联系页 */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:26px}
.contact-card{border:1px solid var(--line);background:#fff;padding:24px 22px;border-radius:3px;position:relative;overflow:hidden}
.contact-card:before{content:"";position:absolute;right:-24px;top:-24px;width:72px;height:72px;border:14px solid #daf1f7;border-radius:50%}
.contact-card b{display:block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#1685b3;font-weight:800}
.contact-card a,.contact-card strong{display:block;margin-top:10px;font-size:20px;font-weight:800;color:#062d55;text-decoration:none;word-break:break-all}
.contact-card a:hover{color:#0877ba}
.contact-card span{display:block;margin-top:7px;font-size:13px;color:var(--muted);line-height:1.7}
.contact-qr{display:grid;grid-template-columns:240px 1fr;gap:34px;align-items:center;margin-top:26px;border:1px solid var(--line);background:#fff;padding:26px;border-radius:3px}
.contact-qr img{width:100%;height:auto;display:block;border-radius:4px;border:1px solid var(--line)}
.contact-qr b{display:block;font-size:18px;color:#062d55;margin-bottom:10px}
.contact-qr p{margin:0 0 10px;color:var(--muted);font-size:15px;line-height:1.8}
.contact-list{margin:16px 0 0;padding-left:20px;color:var(--muted);font-size:15px;line-height:2}
.contact-list li{margin-bottom:4px}
@media(max-width:760px){.contact-grid{grid-template-columns:1fr}.contact-qr{grid-template-columns:1fr;gap:20px;padding:20px}.contact-card a,.contact-card strong{font-size:18px}}
/* 2026-11-02 案例栏目 */
.case-list{display:grid;gap:16px;margin-top:24px}
.case-card{border:1px solid var(--line);background:#fff;padding:24px 24px 20px;border-radius:3px;transition:border-color .18s,box-shadow .18s;display:block;text-decoration:none;color:inherit}
.case-card:hover{border-color:#9fd7e8;box-shadow:0 6px 20px rgba(6,45,85,.07)}
.case-card h3{margin:0 0 8px;font-size:19px;color:#062d55;line-height:1.45}
.case-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
.case-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:10px}
.case-tag{display:inline-block;padding:2px 9px;border-radius:3px;background:#eef8fb;color:#1685b3;font-size:12px;font-weight:700}
.case-meta{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:22px 0 26px;border:1px solid var(--line);border-radius:3px;overflow:hidden;background:#fff}
.case-meta div{padding:15px 16px;border-right:1px solid var(--line)}
.case-meta div:last-child{border-right:0}
.case-meta b{display:block;font-size:11px;letter-spacing:.08em;color:#1685b3;font-weight:800;margin-bottom:5px}
.case-meta span{display:block;font-size:14px;color:#062d55;font-weight:700;line-height:1.5}
.case-figure{margin:24px 0;border:1px solid var(--line);border-radius:3px;overflow:hidden;background:#fff}
.case-figure img{display:block;width:100%;height:auto}
.case-figure figcaption{padding:11px 15px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);background:#fafcfd}
.case-note{margin:22px 0;padding:16px 18px;border-left:3px solid #1685b3;background:#f6fbfd;border-radius:0 3px 3px 0}
.case-note b{display:block;margin-bottom:6px;color:#062d55;font-size:14px}
.case-note p{margin:0;font-size:14px;color:#3f5866;line-height:1.8}
@media(max-width:760px){.case-meta{grid-template-columns:repeat(2,1fr)}.case-meta div:nth-child(2){border-right:0}.case-meta div:nth-child(1),.case-meta div:nth-child(2){border-bottom:1px solid var(--line)}.case-card{padding:20px 18px 16px}.case-card h3{font-size:17px}}

/* ── 工具页（2026-11-02）────────────────────────────── */
.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.tool-card{border:1px solid var(--line);background:#fff;padding:26px 24px;border-radius:3px;display:flex;flex-direction:column;transition:border-color .2s,box-shadow .2s}
.tool-card:hover{border-color:var(--blue);box-shadow:0 6px 22px rgba(0,0,0,.06)}
.tool-tag{display:inline-block;align-self:flex-start;font-size:12px;letter-spacing:.4px;color:var(--blue);border:1px solid var(--line);border-radius:2px;padding:3px 9px;margin-bottom:14px}
.tool-tag.lock{color:#9a5b12;border-color:#f0cf9d;background:#fffaf2}
.tool-card h3{margin:0 0 10px;font-size:19px;line-height:1.4}
.tool-card p{margin:0 0 14px;color:var(--muted);font-size:14px;line-height:1.75}
.tool-card .tool-list{margin:0 0 20px;padding-left:18px;color:var(--muted);font-size:13.5px;line-height:1.85}
.tool-card .tool-go{margin-top:auto;font-weight:600;color:var(--blue);text-decoration:none;font-size:14.5px;border-top:1px solid var(--line);padding-top:14px}
.tool-card .tool-go::after{content:" →"}
.tool-card .tool-go:hover{text-decoration:underline}
.tool-note{margin-top:24px;padding:16px 18px;border-left:3px solid var(--cyan);background:#f7fafc;font-size:13.5px;color:var(--muted);line-height:1.85}
@media(max-width:980px){.tool-grid{grid-template-columns:1fr}}