:root{--blue:#1e4ed8;--blue2:#1439a5;--ink:#10213d;--muted:#64728b;--line:#dfe6f0;--bg:#f5f7fb;--soft:#edf3ff;--green:#0b8a64;--red:#bf3441;--radius:20px;--shadow:0 16px 48px rgba(25,52,98,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.7}a{color:var(--blue);text-decoration:none}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 40px));margin:auto}.narrow{width:min(820px,100%);margin-inline:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:12px;top:12px;z-index:999;background:white;padding:10px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(223,230,240,.8)}.nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}.brand img{width:44px;height:44px}.brand span{display:flex;flex-direction:column;line-height:1.3}.brand small{color:var(--muted);font-size:12px;margin-top:3px}.main-nav{display:flex;align-items:center;gap:25px}.main-nav>a{color:#364561;font-size:15px}.main-nav>a:hover{color:var(--blue)}.main-nav .nav-cta{background:var(--blue);color:#fff;padding:10px 18px;border-radius:12px}.nav-toggle{display:none;border:0;background:none;font-size:24px}
.hero{padding:76px 0 70px;background:radial-gradient(circle at 85% 20%,#dce9ff 0,transparent 30%),linear-gradient(180deg,#f7faff,#fff)}.hero-grid,.landing-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:68px;align-items:center}.eyebrow{display:inline-flex;color:var(--blue);background:#eaf1ff;border:1px solid #d6e4ff;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:700}.hero h1,.landing-hero h1{font-size:clamp(40px,5vw,66px);line-height:1.12;letter-spacing:-2px;margin:20px 0}.hero-copy>p,.landing-grid>div>p{font-size:19px;color:var(--muted)}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0}.btn{display:inline-flex;justify-content:center;align-items:center;border:0;border-radius:13px;padding:12px 20px;font-weight:750;font-size:15px;cursor:pointer}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 24px rgba(30,78,216,.22)}.btn-primary:hover{background:var(--blue2)}.btn-secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.btn-light{background:#fff;color:var(--blue)}.btn-ghost{background:transparent;border:1px solid #52617d;color:#dbe5f8}.btn-danger{background:#fff0f1;color:var(--red);border:1px solid #f2c7cc}.btn-block{width:100%}.trust-row{display:flex;gap:20px;flex-wrap:wrap;color:#40516e;font-size:14px}.trust-row span:before{content:"✓";color:var(--green);font-weight:900;margin-right:6px}.expert-card{background:#fff;border:1px solid #dce6f6;border-radius:30px;padding:16px;box-shadow:var(--shadow);transform:rotate(1deg)}.expert-card img{width:100%;aspect-ratio:6/6.6;object-fit:cover;border-radius:22px;background:var(--soft)}.expert-card>div{padding:18px 12px 8px}.expert-card h2{margin:0}.expert-card p{margin:2px 0;color:var(--muted)}
.section{padding:84px 0}.section-muted{background:var(--bg)}.section-dark{background:#0f1f3a;color:#fff}.section-head{text-align:center;max-width:760px;margin:0 auto 42px}.section-head.left{text-align:left;margin-left:0}.section-head>span{color:var(--blue);font-weight:800}.section-head h2{font-size:clamp(30px,4vw,44px);line-height:1.2;margin:10px 0 14px}.section-head p{color:var(--muted);font-size:17px}.section-head.light>span{color:#91b7ff}.section-head.light p{color:#b9c5d8}.cards{display:grid;gap:22px}.cards.three{grid-template-columns:repeat(3,1fr)}.card{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 8px 25px rgba(28,54,102,.05)}.card h2,.card h3{line-height:1.35;margin:8px 0}.card p{color:var(--muted)}.card-kicker{font-size:13px;color:var(--blue);font-weight:700}.service-card{transition:.2s}.service-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.problem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.problem-grid>a,.problem-grid>div{display:flex;flex-direction:column;padding:24px;border-radius:16px;background:#fff;border:1px solid var(--line);color:var(--ink)}.problem-grid small{color:var(--muted);margin-top:6px}.split{display:grid;grid-template-columns:1fr 1fr;gap:68px;align-items:start}.timeline{border-left:2px solid #cdd9eb;padding-left:25px}.timeline>div{position:relative;margin:0 0 28px}.timeline>div:before{content:"";position:absolute;left:-33px;top:8px;width:14px;height:14px;border-radius:50%;background:var(--blue);border:3px solid #fff}.timeline b{color:var(--blue)}.timeline p{margin:4px 0;color:var(--muted)}.timeline.wide{max-width:850px;margin:auto}.tag-list{display:flex;gap:9px;flex-wrap:wrap;margin:24px 0}.tag-list span{background:var(--soft);border:1px solid #dce7fb;padding:5px 11px;border-radius:999px;font-size:13px}.dark-card{padding:28px;border:1px solid #2b3f62;border-radius:var(--radius);background:#172a49}.dark-card p{color:#bcc8da}.post-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.post-list article{background:#fff;border:1px solid var(--line);padding:26px;border-radius:18px}.post-list span,.post-card>span{color:var(--blue);font-size:13px;font-weight:700}.post-list p,.post-card p{color:var(--muted)}
.cta-section{padding:40px 0 85px}.cta-box{background:linear-gradient(135deg,var(--blue),#4b75ec);color:#fff;border-radius:28px;padding:42px 50px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta-box h2{font-size:36px;margin:7px 0}.cta-box p{margin:0;color:#dce6ff}
.page-hero,.landing-hero{padding:72px 0;background:linear-gradient(180deg,#f5f9ff,#fff);text-align:center}.page-hero h1{font-size:clamp(38px,5vw,58px);line-height:1.15;margin:18px 0}.page-hero p{max-width:800px;margin:auto;color:var(--muted);font-size:18px}.landing-hero{text-align:left}.mini-expert{background:#fff;border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:var(--shadow);display:flex;align-items:center;gap:16px}.mini-expert img{width:120px;height:140px;object-fit:cover;border-radius:16px}.mini-expert p{margin:3px 0;color:var(--muted)}.hero-bullets{padding:0;list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:8px}.hero-bullets li:before{content:"✓";color:var(--green);font-weight:bold;margin-right:8px}.fit-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.fit-grid>div{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px}.check-list,.x-list{padding:0;list-style:none}.check-list li,.x-list li{padding:8px 0 8px 28px;position:relative}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:900}.x-list li:before{content:"×";position:absolute;left:0;color:var(--red);font-weight:900}.process{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.process>div{background:var(--bg);border-radius:16px;padding:20px}.process span{display:grid;place-items:center;width:32px;height:32px;background:var(--blue);color:#fff;border-radius:50%;font-weight:bold}.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:12px 0}.faq summary{cursor:pointer;font-weight:700}
.rich-text{font-size:17px;color:#33425f}.rich-text h2,.rich-text h3{color:var(--ink);margin-top:1.8em}.rich-text img{border-radius:16px}.rich-text pre{background:#101a2d;color:#dfe8ff;padding:20px;border-radius:14px;overflow:auto}.content-panel{margin-top:36px;background:var(--bg);padding:32px;border-radius:20px}.article-head{padding:70px 0;background:var(--bg);text-align:center}.article-head h1{font-size:clamp(36px,5vw,56px);line-height:1.2}.article-head p{color:var(--muted);font-size:18px}.article-body{padding:60px 0}.article-cta{border-top:1px solid var(--line);padding:40px 0 80px}.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.post-card{border:1px solid var(--line);border-radius:20px;padding:28px}.post-card h2{line-height:1.35}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:30px}.metrics div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;text-align:center}.about-grid{display:grid;grid-template-columns:360px 1fr;gap:60px}.about-photo{width:100%;border-radius:24px;box-shadow:var(--shadow)}
.contact-panel{background:var(--bg);padding:24px;border-radius:18px;margin-top:30px}.contact-form,.admin-form{background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:0 8px 24px rgba(25,50,92,.06)}label{display:block;font-weight:650;margin-bottom:18px}input,textarea,select{width:100%;margin-top:7px;border:1px solid #cfd8e7;border-radius:11px;padding:11px 13px;font:inherit;background:#fff;color:var(--ink)}textarea{resize:vertical}.field-row,.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.check{display:flex;align-items:flex-start;gap:10px;font-weight:400}.check input{width:auto;margin-top:6px}.honeypot{position:absolute;left:-9999px}.form-note{display:block;color:var(--muted);margin-top:14px}.alert{border-radius:12px;padding:12px 15px;margin:0 0 18px}.alert.success{background:#e7f8f2;color:#096b4f}.alert.error{background:#fff0f1;color:#9b2630}
.site-footer{background:#0d1a30;color:#c1ccdc;padding:65px 0 0}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}.site-footer h3,.footer-brand b{color:#fff}.site-footer a{display:block;color:#c1ccdc;margin:8px 0}.footer-bottom{border-top:1px solid #263752;margin-top:45px;padding:22px 0;font-size:13px}.error-page{min-height:70vh;display:grid;place-items:center;text-align:center}.error-page strong{font-size:100px;color:var(--blue)}
.admin-body{background:#f3f6fa}.admin-shell{min-height:100vh;display:grid;grid-template-columns:250px 1fr}.admin-sidebar{background:#10203a;color:#fff;padding:24px;display:flex;flex-direction:column}.admin-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;margin-bottom:28px}.admin-logo img{width:38px}.admin-sidebar nav{display:flex;flex-direction:column;gap:4px;flex:1}.admin-sidebar nav a{color:#cbd6e8;padding:10px 12px;border-radius:9px}.admin-sidebar nav a:hover{background:#1b3153;color:#fff}.admin-main{min-width:0}.admin-top{height:68px;background:#fff;border-bottom:1px solid var(--line);padding:0 28px;display:flex;align-items:center;justify-content:space-between}.admin-menu{display:none}.admin-content{padding:30px}.admin-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.admin-heading h1{margin:0}.admin-heading p{margin:4px 0;color:var(--muted)}.stat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-bottom:25px}.stat-grid>div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}.stat-grid b{display:block;font-size:30px;color:var(--blue)}.stat-grid span{color:var(--muted)}.admin-panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.panel-head{display:flex;justify-content:space-between;align-items:center}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:13px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:13px;color:var(--muted)}.status{display:inline-block;padding:3px 9px;border-radius:999px;background:#eef2f7;font-size:12px}.status.published,.status.completed{background:#e7f8f2;color:#087455}.status.draft,.status.new{background:#fff4d9;color:#8b6411}.status.rejected,.status.invalid{background:#fff0f1;color:#a32935}.block{display:block;color:var(--muted)}.admin-form{max-width:1080px}.admin-form .code-area{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:14px}.form-actions{display:flex;gap:12px}.lead-detail dl{display:grid;grid-template-columns:150px 1fr;gap:12px}.lead-detail dt{color:var(--muted)}.lead-detail dd{margin:0}.prewrap{white-space:pre-wrap}
.login-body{min-height:100vh;display:grid;place-items:center;background:linear-gradient(145deg,#eaf1ff,#f8faff)}.login-card{width:min(420px,calc(100% - 32px));background:#fff;border-radius:24px;padding:36px;box-shadow:var(--shadow)}.login-card>img{width:60px;margin:auto}.login-card h1{text-align:center}.login-card>a{display:block;text-align:center;margin-top:18px}
@media(max-width:980px){.main-nav{display:none;position:absolute;top:76px;left:20px;right:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;padding:18px;flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.nav-toggle{display:block}.hero-grid,.landing-grid,.split,.about-grid{grid-template-columns:1fr}.cards.three,.problem-grid,.post-grid,.post-list{grid-template-columns:1fr 1fr}.process{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.expert-card{max-width:520px}.admin-shell{grid-template-columns:1fr}.admin-sidebar{position:fixed;left:-270px;top:0;bottom:0;width:250px;z-index:80;transition:.2s}.admin-sidebar.open{left:0}.admin-menu{display:block}.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.container{width:min(100% - 28px,1180px)}.hero{padding-top:45px}.hero h1,.landing-hero h1{font-size:39px;letter-spacing:-1px}.section{padding:60px 0}.cards.three,.problem-grid,.post-grid,.post-list,.fit-grid,.field-row,.form-grid,.metrics{grid-template-columns:1fr}.process{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.cta-box{padding:30px;align-items:flex-start;flex-direction:column}.hero-bullets{grid-template-columns:1fr}.mini-expert img{width:95px;height:110px}.admin-content{padding:18px}.admin-heading{align-items:flex-start;flex-direction:column}.stat-grid{grid-template-columns:1fr 1fr}.contact-form,.admin-form{padding:20px}.brand small{display:none}}

.narrow-form{max-width:760px}.form-help{margin:-6px 0 20px;color:var(--muted);font-size:14px}

.qr-image{width:168px;height:168px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;margin-bottom:15px}.admin-qr-preview{width:120px;height:120px;object-fit:contain;margin-top:12px;border:1px solid var(--line);border-radius:10px;padding:5px}

.contact-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.contact-buttons .btn{padding:9px 14px}
.install-body{min-height:100vh;background:linear-gradient(145deg,#eaf1ff,#f8faff);padding:40px 16px}.install-shell{width:min(880px,100%);margin:auto}.install-head{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:28px}.install-head img{width:52px}.install-head b,.install-head span{display:block}.install-head span{color:var(--muted);font-size:13px}.install-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:34px;box-shadow:var(--shadow)}.install-card h1{margin:0 0 6px}.install-lead{margin:0 0 26px;color:var(--muted)}.install-steps{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;padding:0;margin:0 0 18px;list-style:none}.install-steps li{text-align:center;color:var(--muted);font-size:12px}.install-steps span{display:grid;place-items:center;width:30px;height:30px;margin:0 auto 5px;border-radius:50%;background:#dfe6f0;color:#52617d;font-weight:800}.install-steps .active span,.install-steps .done span{background:var(--blue);color:#fff}.install-steps .done span{background:var(--green)}.check-table{display:grid;gap:9px;margin-bottom:24px}.check-table>div{display:grid;grid-template-columns:60px 1fr auto;align-items:center;gap:10px;padding:10px 12px;background:var(--bg);border-radius:10px}.check-table small{color:var(--muted)}.install-form{max-width:620px}.install-form label small{display:block;color:var(--muted);font-weight:400;margin-top:4px}.install-summary{display:grid;grid-template-columns:150px 1fr;gap:9px 18px;padding:20px;background:var(--bg);border-radius:14px}.install-summary dt{color:var(--muted)}.install-summary dd{margin:0;overflow-wrap:anywhere}.install-done{text-align:center}.install-icon{display:grid;place-items:center;width:68px;height:68px;margin:0 auto 18px;border-radius:50%;background:#e7f8f2;color:var(--green);font-size:36px;font-weight:900}.install-done .btn{margin:8px 4px}
@media(max-width:650px){.install-body{padding:22px 12px}.install-card{padding:24px 18px}.install-steps{grid-template-columns:repeat(3,1fr);row-gap:12px}.check-table>div{grid-template-columns:55px 1fr}.check-table small{grid-column:2}.install-summary{grid-template-columns:1fr}.install-summary dd{margin-bottom:7px}}