/* Jinzhai Mail Guide Design System v1.0
   Scoped to body.jm-site: standalone guide pages, no Vue SPA styles touched. */
:root{color-scheme:light;--jm-blue:#3b82f6;--jm-blue-strong:#2563eb;--jm-cyan:#06b6d4;--jm-ink:#0b1733;--jm-text:#32405e;--jm-muted:#6b7994;--jm-line:#e4ecf7;--jm-bg:#f6f9fe;--jm-card:#fff;--jm-soft:#eff6ff;--jm-radius:22px;--jm-shadow:0 20px 55px rgba(38,80,145,.075)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body.jm-site{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;background:var(--jm-bg);color:var(--jm-text);font-size:15px;line-height:1.72;-webkit-font-smoothing:antialiased}body.jm-site a{color:inherit;text-decoration:none}body.jm-site button,body.jm-site input{font:inherit}button{cursor:pointer}body.jm-site img,body.jm-site svg{max-width:100%}::selection{background:#c8edff;color:#063775}:focus-visible{outline:3px solid #37b4f5;outline-offset:3px}a,button,input{transition:background-color .18s,color .18s,border-color .18s,box-shadow .18s,transform .18s}
.jm-container{width:min(1180px,calc(100% - 48px));margin:0 auto}.jm-skip{position:absolute;z-index:200;left:20px;top:-80px;background:#fff;color:#0b3f8a;padding:10px 20px;border:2px solid var(--jm-blue);border-radius:12px}.jm-skip:focus{top:14px}
.jm-header{height:76px;position:sticky;top:0;z-index:90;background:rgba(255,255,255,.9);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);border-bottom:1px solid rgba(218,230,246,.85)}.jm-header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}.jm-brand{display:inline-flex;align-items:center;gap:11px;min-width:0;color:var(--jm-ink)!important}.jm-brand-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:linear-gradient(150deg,#2e79f0,#17b9dd);box-shadow:0 6px 20px rgba(37,99,235,.24);color:#fff;flex:0 0 auto}.jm-brand-icon svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8}.jm-brand-words{display:flex;flex-direction:column;gap:0;line-height:1.25}.jm-brand-words strong{font-size:17px;color:#122645;font-weight:800;letter-spacing:-.35px}.jm-brand-words small{font-size:10px;letter-spacing:1.35px;font-weight:800;color:#70a2d4}.jm-nav{display:flex;align-items:center;gap:10px;margin-left:auto}.jm-nav>a{display:inline-flex;align-items:center;gap:7px;padding:9px 15px;font-size:13px;color:#61718a;font-weight:750;border-radius:10px}.jm-nav>a:hover,.jm-nav>a[aria-current="page"]{background:#eff6ff;color:#2563eb}.jm-header-cta{display:inline-flex;align-items:center;justify-content:center;gap:9px;background:var(--jm-blue-strong);color:#fff!important;padding:11px 18px;border-radius:12px;white-space:nowrap;font-size:13px;font-weight:800;box-shadow:0 8px 20px rgba(37,99,235,.2)}.jm-header-cta:hover,.jm-btn-primary:hover{background:#1455d8;transform:translateY(-1px)}.jm-header-cta svg,.jm-btn svg,.jm-arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.jm-hero{position:relative;isolation:isolate;overflow:hidden;background:linear-gradient(112deg,#f4f9ff 6%,#edf6ff 52%,#e5f9fb 100%);border-bottom:1px solid #e5effb}.jm-hero:before,.jm-hero:after{content:"";position:absolute;z-index:-1;border-radius:50%;filter:blur(6px)}.jm-hero:before{width:420px;height:420px;background:radial-gradient(circle,rgba(76,154,250,.14),transparent 70%);top:-170px;left:-160px}.jm-hero:after{width:460px;height:460px;background:radial-gradient(circle,rgba(29,194,214,.14),transparent 70%);bottom:-250px;right:-120px}.jm-hero-grid{display:grid;grid-template-columns:1.13fr .87fr;align-items:center;gap:56px;padding:65px 0 70px}.jm-eyebrow{display:inline-flex;align-items:center;gap:9px;border:1px solid #cadffd;border-radius:99px;background:rgba(255,255,255,.7);padding:6px 13px;color:#2368c8;font-weight:800;font-size:11px;letter-spacing:.9px}.jm-eyebrow-dot{display:block;width:7px;height:7px;border-radius:100%;background:var(--jm-cyan);box-shadow:0 0 0 4px rgba(6,182,212,.13)}.jm-hero h1{font-size:clamp(37px,3.7vw,47px);line-height:1.24;font-weight:860;letter-spacing:-1.5px;margin:21px 0 18px;color:#102446}.jm-hero h1 span{color:var(--jm-blue-strong)}.jm-hero p{font-size:16px;max-width:590px;color:#5b6c87;margin:0 0 28px;line-height:1.85}.jm-search{display:flex;align-items:center;gap:13px;border-radius:16px;border:1px solid #d4e3f8;background:#fff;padding:9px 10px 9px 18px;box-shadow:0 12px 35px rgba(40,96,170,.1);max-width:570px}.jm-search:focus-within{border-color:#7cb5fa;box-shadow:0 0 0 4px rgba(59,130,246,.12),0 12px 35px rgba(40,96,170,.09)}.jm-search>svg{width:21px;height:21px;fill:none;stroke:#6c8ab1;stroke-width:2;flex:0 0 auto}.jm-search input{border:none;outline:none!important;min-width:0;flex:1;font-size:14px;color:#12355e;background:transparent;padding:9px 0}.jm-search input::placeholder{color:#95a5ba}.jm-search button{border:none;background:#eff6ff;border-radius:9px;color:#4676b6;font-size:12px;font-weight:800;padding:9px 12px}.jm-search button:hover{background:#deedff}.jm-trending{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:17px;font-size:12px;color:#8796aa}.jm-trending button{border:1px solid #d9e6f7;border-radius:99px;padding:5px 12px;background:#fafdff;color:#47759f;font-size:12px}.jm-trending button:hover{border-color:#9ccaff;color:#1d63ca}
.jm-quickstart{background:#fff;box-shadow:0 30px 65px rgba(33,99,178,.12);border:1px solid rgba(216,232,249,.9);border-radius:26px;padding:23px;transform:rotate(1deg);max-width:480px;margin-left:auto;position:relative}.jm-quickstart:before{content:"";position:absolute;inset:9px -9px -9px 9px;border:1px solid #bfdcf9;border-radius:26px;z-index:-1;background:rgba(255,255,255,.45)}.jm-preview-head{display:flex;align-items:center;justify-content:space-between;padding:1px 0 17px;border-bottom:1px solid #edf2fa}.jm-preview-head>div{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:850;color:#1a355b}.jm-preview-small{display:inline-flex;align-items:center;gap:5px;color:#2298a7;font-size:11px;font-weight:750;background:#ebfbfa;border-radius:30px;padding:5px 9px;white-space:nowrap;flex-shrink:0}.jm-preview-tile{width:36px;height:36px;background:#eaf4ff;border-radius:11px;display:grid;place-items:center;color:var(--jm-blue-strong)}.jm-preview-tile svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.8}.jm-preview-list{list-style:none;padding:8px 0 0;margin:0}.jm-preview-list li{display:flex;align-items:flex-start;gap:15px;padding:15px 3px}.jm-preview-list li:not(:last-child){border-bottom:1px dashed #e9f0fa}.jm-step-n{width:30px;height:30px;display:grid;place-items:center;border-radius:10px;flex:0 0 auto;font-size:12px;font-weight:850;background:#e9f2ff;color:#357ee4}.jm-preview-list li:first-child .jm-step-n{background:var(--jm-blue-strong);color:#fff}.jm-preview-list b{display:block;color:#243d64;font-size:13px}.jm-preview-list span{display:block;color:#7e8ea7;font-size:12px;line-height:1.55;margin-top:3px}.jm-preview-bottom{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-radius:12px;background:#f2f9ff;color:#5e779c;font-size:12px}.jm-preview-bottom b{color:#236bba}
.jm-section{padding:66px 0}.jm-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px}.jm-section-head h2{color:#142a4d;letter-spacing:-.65px;font-size:29px;line-height:1.35;margin:0 0 6px}.jm-section-head p{color:#7d8ca5;font-size:13px;margin:0}.jm-section-count{font-size:12px;border:1px solid var(--jm-line);padding:7px 13px;border-radius:99px;color:#7f8eaa;background:#fff;white-space:nowrap}.jm-filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:23px}.jm-filter{border:1px solid #dde8f6;background:#fff;color:#73829b;border-radius:11px;padding:9px 17px;font-size:12px;font-weight:750}.jm-filter:hover{border-color:#a6cfff;color:#2d6dd2}.jm-filter[aria-pressed=true]{border-color:var(--jm-blue-strong);color:#fff;background:var(--jm-blue-strong);box-shadow:0 7px 19px rgba(37,99,235,.18)}
.jm-featured{display:grid;grid-template-columns:1fr auto;gap:22px;align-items:center;background:linear-gradient(115deg,#eef6ff,#fff 70%);border:1px solid #cce1fd;border-radius:var(--jm-radius);padding:29px 32px;margin-bottom:16px;position:relative;overflow:hidden;box-shadow:0 6px 22px rgba(40,98,170,.04)}.jm-featured:after{content:"";position:absolute;width:175px;height:175px;border:25px solid #e4f1ff;border-radius:50%;right:-65px;top:-92px;pointer-events:none}.jm-featured:hover{border-color:#93bff8;box-shadow:var(--jm-shadow);transform:translateY(-2px)}.jm-featured-top{display:flex;align-items:center;gap:10px;margin-bottom:13px}.jm-featured-label{background:#ddecff;border-radius:6px;padding:3px 8px;color:#2563eb;font-size:11px;font-weight:800}.jm-meta{font-size:12px;color:#8b9bb1}.jm-featured h3{margin:0 0 10px;font-size:22px;color:#1b3558;letter-spacing:-.4px}.jm-featured p{font-size:13px;line-height:1.8;color:#6e809a;margin:0;max-width:620px}.jm-featured-cta{display:inline-flex;align-items:center;gap:8px;margin-top:20px;font-size:13px;font-weight:850;color:#2d73d8}.jm-featured-cta svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2}.jm-featured-mark{height:110px;width:110px;border-radius:25px;display:grid;place-items:center;background:linear-gradient(150deg,#3b82f6,#06b6d4);box-shadow:0 14px 28px rgba(35,132,217,.22);color:#fff;transform:rotate(-8deg);z-index:1}.jm-featured-mark svg{width:58px;height:58px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.jm-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.jm-guide-card{display:flex;flex-direction:column;position:relative;min-height:216px;padding:27px 29px;background:#fff;border:1px solid var(--jm-line);border-radius:20px;box-shadow:0 6px 20px rgba(45,75,124,.025)}.jm-guide-card:hover{border-color:#a9cfff;box-shadow:var(--jm-shadow);transform:translateY(-3px)}.jm-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.jm-guide-icon{width:47px;height:47px;border-radius:14px;display:grid;place-items:center;background:#eaf3ff;color:#2a79e8}.jm-guide-icon svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.jm-guide-card[data-category="收件"] .jm-guide-icon{background:#eafaf8;color:#0e9d9c}.jm-guide-card[data-category="账号安全"] .jm-guide-icon{background:#fff3e7;color:#e78b25}.jm-guide-card[data-category="使用场景"] .jm-guide-icon{background:#f0edff;color:#7456c9}.jm-card-arrow{font-size:22px;line-height:1;color:#a4b3ca}.jm-guide-card:hover .jm-card-arrow{color:var(--jm-blue)}.jm-guide-card h3{margin:18px 0 8px;color:#1a3355;font-size:17px;letter-spacing:-.25px}.jm-guide-card p{margin:0;color:#7888a1;font-size:13px;line-height:1.77}.jm-card-foot{display:flex;justify-content:space-between;margin-top:auto;padding-top:23px;color:#9ca9ba;font-size:11px}.jm-card-foot span:last-child{color:#5188cf;font-weight:750}.jm-guide-item[hidden]{display:none!important}.jm-no-result{padding:40px;text-align:center;border:1px dashed #b9d2ed;background:#fff;border-radius:18px}.jm-no-result h3{color:#28456c}.jm-no-result p{font-size:13px;color:#8a9ab1}.jm-no-result button{border:0;background:#e7f2ff;color:#2563eb;border-radius:10px;padding:10px 15px;font-weight:800}
.jm-help-strip{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:8px auto 68px;background:#112b53;border-radius:24px;color:#fff;padding:27px 35px;position:relative;overflow:hidden}.jm-help-strip:after{content:"";position:absolute;right:10%;top:-80px;width:190px;height:190px;border-radius:50%;background:rgba(59,177,245,.09)}.jm-help-text{display:flex;align-items:center;gap:18px;z-index:1}.jm-help-logo{height:50px;width:50px;border-radius:15px;display:grid;place-items:center;background:#1b467e;color:#8ddcff;flex:0 0 auto}.jm-help-logo svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.8}.jm-help-text h3{font-size:17px;margin:0 0 2px}.jm-help-text p{font-size:12px;color:#a9c0de;margin:0}.jm-strip-action{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;background:#fff;color:#2354a0!important;border-radius:12px;white-space:nowrap;font-size:13px;font-weight:800;z-index:1}.jm-strip-action:hover{background:#dcedff}.jm-strip-action svg{width:16px;height:16px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.jm-footer{background:#fff;border-top:1px solid #e7eef8}.jm-footer-inner{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:33px 0}.jm-footer h3{font-size:13px;color:#17345a;margin:0 0 5px}.jm-footer p{margin:0;font-size:12px;color:#93a0b3}.jm-footer-links{display:flex;gap:24px;flex-wrap:wrap}.jm-footer-links a{font-size:12px;color:#72829b}.jm-footer-links a:hover{color:#2563eb}.jm-footer-meta{border-top:1px solid #edf2f8;padding:13px 0 20px;font-size:11px;color:#9da9b9}
/* Article */
.jm-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;color:#8493a9;padding:28px 0 0}.jm-breadcrumb a{color:#5278a9!important}.jm-breadcrumb a:hover{color:#1d63cf!important}.jm-breadcrumb>span{color:#bbc8d7}.jm-article-hero{padding:34px 0 42px}.jm-article-hero-grid{display:grid;grid-template-columns:1fr 260px;align-items:center;gap:42px}.jm-article-kicker{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:12px;color:#7690b0;font-weight:700}.jm-article-kicker em{font-style:normal;background:#e7f1ff;border-radius:7px;color:#2b75d4;padding:4px 10px;font-size:11px}.jm-article-hero h1{font-size:clamp(31px,3.15vw,43px);line-height:1.35;letter-spacing:-.9px;font-weight:850;margin:14px 0 14px;color:#112b50}.jm-article-hero p{max-width:780px;margin:0;color:#6a7d99;font-size:15px;line-height:1.9}.jm-article-stats{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:19px;font-size:11px;color:#8c9db3}.jm-article-stats span{display:inline-flex;align-items:center;gap:6px}.jm-article-stats svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.8}.jm-art-illustration{background:linear-gradient(135deg,#d7eaff,#e0faff);height:190px;border-radius:28px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;border:1px solid #d6eafa}.jm-art-illustration:before,.jm-art-illustration:after{content:"";position:absolute;border-radius:50%;background:#bddcfe}.jm-art-illustration:before{height:250px;width:250px;top:-160px;right:-80px}.jm-art-illustration:after{height:130px;width:130px;bottom:-70px;left:-50px;background:#c1f3f5}.jm-art-icon{position:relative;z-index:1;height:108px;width:120px;display:grid;place-items:center;border-radius:25px;background:#fff;box-shadow:0 22px 50px rgba(35,109,184,.2);transform:rotate(-7deg);color:#3688ee}.jm-art-icon svg{width:65px;height:65px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.jm-art-spark{position:absolute;height:15px;width:15px;border-radius:4px;background:#68d1e5;top:33px;left:36px;transform:rotate(25deg)}
.jm-article-grid{display:grid;grid-template-columns:205px minmax(0,1fr) 222px;align-items:start;gap:22px;padding-bottom:72px}.jm-toc,.jm-side-panel{position:sticky;top:104px}.jm-toc{background:#fff;border:1px solid #e5ecf6;border-radius:18px;padding:21px 14px}.jm-toc h2{font-size:11px;letter-spacing:1px;color:#9babbd;margin:0 11px 13px}.jm-toc a{display:block;color:#7b8da7!important;font-size:12px;font-weight:700;padding:10px 12px;margin:2px 0;border-radius:10px;border-left:2px solid transparent;line-height:1.5}.jm-toc a:hover,.jm-toc a[aria-current="location"]{color:#246bd3!important;background:#edf5ff;border-left-color:#3b82f6}.jm-toc-bottom{border-top:1px solid #eff3f8;margin-top:12px;padding:14px 10px 0}.jm-toc-bottom a{padding:0;color:#2f79d8!important}
.jm-article-body{min-width:0;background:#fff;border:1px solid #e4edf8;border-radius:22px;box-shadow:0 7px 25px rgba(23,61,109,.04);padding:37px 41px}.jm-article-body h2{font-size:23px;font-weight:830;letter-spacing:-.5px;line-height:1.45;color:#132f56;margin:0 0 19px}.jm-article-body h3{font-size:16px;font-weight:800;color:#203e65;margin:20px 0 10px}.jm-article-body p{font-size:14px;line-height:1.98;color:#63758e;margin:0 0 14px}.jm-article-body p:last-child{margin-bottom:0}.jm-article-body a:not(.jm-btn){color:#256bd0;text-underline-offset:3px;text-decoration:underline;text-decoration-color:#c5d9f4}.jm-article-body a:hover{color:#0648bd!important}.jm-article-body strong{color:#244065}.jm-article-section{scroll-margin-top:105px}.jm-article-section+.jm-article-section{margin-top:33px;padding-top:34px;border-top:1px solid #edf2fa}.jm-lead-box{display:flex;align-items:flex-start;gap:14px;background:#edf7ff;border:1px solid #d6e9fc;border-radius:15px;padding:18px 20px;margin:0 0 28px}.jm-lead-box .jm-lead-icon{height:29px;width:29px;display:grid;place-items:center;background:#d9ecff;border-radius:9px;flex:0 0 auto;color:#2876da}.jm-lead-icon svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2}.jm-lead-box strong{display:block;font-size:13px;color:#205caa;margin-bottom:3px}.jm-lead-box p{font-size:12px;line-height:1.8;color:#5f81a9;margin:0}.jm-step-list{padding:0;margin:0;list-style:none;display:flex;flex-direction:column;gap:13px}.jm-step-card{position:relative;display:grid;grid-template-columns:37px 1fr;gap:14px;padding:20px 19px;border:1px solid #e6edf8;border-radius:15px;background:#fff}.jm-step-card:before{content:"";position:absolute;left:36px;top:100%;height:14px;border-left:2px dashed #cddff6}.jm-step-card:last-child:before{display:none}.jm-step-num{height:34px;width:34px;display:grid;place-items:center;border-radius:10px;background:#e7f1ff;color:#2b76df;font-size:13px;font-weight:850}.jm-step-card h3{margin:1px 0 6px;font-size:14px}.jm-step-card p{font-size:13px;margin:0}.jm-code-example{margin:12px 0 0;display:flex;flex-wrap:wrap;align-items:center;gap:10px;background:#f4f8ff;border:1px dashed #d4e2f6;border-radius:10px;padding:11px 13px}.jm-code-example code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:#22538f;font-size:12px;overflow-wrap:anywhere}.jm-code-example span{font-size:10px;color:#94a5bc}.jm-note{margin:18px 0;padding:15px 17px;border-left:3px solid #16afd0;border-radius:0 11px 11px 0;background:#effbfe;color:#4f748d;font-size:12px;line-height:1.86}.jm-note--warning{background:#fff8ea;border-left-color:#e7a33d;color:#876331}.jm-note strong{color:inherit}.jm-bullet-list{margin:10px 0;padding-left:22px;font-size:13px;color:#63758f;line-height:1.95}.jm-bullet-list li{margin:8px 0}.jm-check-list{list-style:none;padding:0;margin:10px 0;display:grid;gap:10px}.jm-check-list li{position:relative;background:#f7faff;padding:14px 18px 14px 45px;border:1px solid #e4ecf8;border-radius:12px;font-size:13px;color:#57708d}.jm-check-list li:before{content:"✓";position:absolute;left:18px;top:13px;font-weight:850;color:#188dca}.jm-compare{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:15px 0}.jm-compare-panel{border:1px solid #dce8f6;background:#f7faff;border-radius:14px;padding:18px}.jm-compare-panel:nth-child(2){border-color:#cfedf1;background:#f0fcfd}.jm-compare-panel h3{margin:0 0 10px;font-size:14px}.jm-compare-panel p{margin:0;font-size:12px;line-height:1.85}.jm-compare-panel ul{margin:10px 0 0;padding-left:18px;font-size:12px;line-height:1.9;color:#69809b}.jm-qa{border:1px solid #e6edf8;border-radius:12px;margin-top:10px;overflow:hidden}.jm-qa summary{display:flex;align-items:center;gap:10px;justify-content:space-between;list-style:none;cursor:pointer;padding:15px 18px;color:#2d4869;font-size:13px;font-weight:800}.jm-qa summary::-webkit-details-marker{display:none}.jm-qa summary:after{content:"+";font-size:20px;line-height:1;color:#7598c6;font-weight:500}.jm-qa[open] summary{background:#f5f9ff}.jm-qa[open] summary:after{content:"−"}.jm-qa>.jm-qa-answer{padding:0 18px 15px}.jm-qa p{margin:0;font-size:13px}.jm-btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:12px;padding:12px 18px;font-weight:800;font-size:13px;text-decoration:none!important}.jm-btn-primary{background:#2563eb;color:#fff!important;box-shadow:0 9px 21px rgba(37,99,235,.19)}.jm-btn-outline{border:1px solid #d4e3f8;background:#fff;color:#316fbd!important}.jm-btn-outline:hover{border-color:#85b9f4;background:#f5faff}.jm-in-article-cta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:20px;background:linear-gradient(112deg,#eff6ff,#edfafa);border:1px solid #d8eaf9;border-radius:15px;margin:22px 0 0}.jm-in-article-cta strong{display:block;font-size:14px;color:#234567}.jm-in-article-cta span{display:block;font-size:11px;color:#7991ac;margin-top:3px}.jm-in-article-cta .jm-btn{margin-left:auto}.jm-side-panel{border:1px solid #dbe8fa;border-radius:17px;background:linear-gradient(158deg,#f4f9ff,#fff);padding:20px}.jm-side-panel .jm-side-icon{height:42px;width:42px;border-radius:13px;background:#e2efff;display:grid;place-items:center;color:#2676db;margin-bottom:12px}.jm-side-icon svg{height:23px;width:23px;stroke:currentColor;fill:none;stroke-width:1.8}.jm-side-panel h2{font-size:14px;color:#204269;margin:0 0 8px}.jm-side-panel p{font-size:12px;color:#7890ab;line-height:1.85;margin:0 0 15px}.jm-side-panel .jm-btn{width:100%;padding:11px 8px;font-size:12px}.jm-side-warning{border-top:1px solid #e3edf9;padding-top:17px;margin-top:19px;font-size:11px;color:#8998aa;line-height:1.9}.jm-side-warning b{color:#557599}.jm-related{margin:32px 0 0}.jm-related h2{font-size:17px;color:#1c3d69;margin:0 0 15px}.jm-related-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.jm-related-links a{border:1px solid #e1eaf6;background:#fff;border-radius:14px;padding:18px;min-height:105px;display:flex;flex-direction:column;gap:9px;justify-content:space-between;font-size:13px;font-weight:800;color:#2b517d!important}.jm-related-links a:hover{border-color:#93baf0;transform:translateY(-2px)}.jm-related-links a span{font-size:11px;color:#8c9db3;font-weight:650}.jm-article-footer-cta{display:flex;align-items:center;justify-content:space-between;gap:22px;border-radius:20px;padding:23px 26px;background:#173763;color:#fff;margin-top:29px}.jm-article-footer-cta h2{font-size:17px;color:#fff;margin:0 0 4px}.jm-article-footer-cta p{color:#b3c9e5;font-size:12px;margin:0}.jm-article-footer-cta .jm-btn{background:#fff;color:#2252a0!important;flex-shrink:0}.jm-article-footer-cta .jm-btn:hover{background:#dfedff}
.jm-mobile-toc{display:none}.jm-mobile-action{display:none}
@media (max-width:1130px){.jm-article-grid{grid-template-columns:195px minmax(0,1fr)}.jm-side-panel{display:none}.jm-article-body{padding:33px 35px}.jm-hero-grid{gap:32px}}
@media (max-width:850px){.jm-header{height:68px}.jm-nav>a{padding:8px 10px}.jm-header-cta{padding:10px 14px}.jm-hero-grid{grid-template-columns:1fr;gap:28px;padding:46px 0 52px}.jm-hero h1{font-size:42px}.jm-hero p{max-width:640px}.jm-quickstart{width:100%;max-width:none;transform:none;padding:19px}.jm-quickstart:before{display:none}.jm-preview-list{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.jm-preview-list li{padding:12px 5px;display:block!important;border-bottom:none!important}.jm-preview-list .jm-step-n{margin-bottom:9px}.jm-preview-bottom{margin-top:4px}.jm-article-hero-grid{grid-template-columns:minmax(0,1fr) 185px;gap:18px}.jm-art-illustration{height:160px}.jm-art-icon{height:88px;width:95px}.jm-art-icon svg{height:50px;width:50px}.jm-article-grid{grid-template-columns:1fr;gap:16px}.jm-toc{display:none}.jm-mobile-toc{display:block;background:#fff;border:1px solid #e3eaf5;border-radius:14px;margin-bottom:0;padding:0 16px}.jm-mobile-toc summary{cursor:pointer;padding:13px 0;font-size:13px;font-weight:750;color:#356aa9}.jm-mobile-toc .jm-toc-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;padding:0 0 14px}.jm-mobile-toc a{color:#537ba7!important;font-size:12px;padding:7px;background:#f3f8ff;border-radius:7px}}
@media (max-width:620px){.jm-container{width:min(100% - 32px,1180px)}.jm-brand-icon{width:38px;height:38px;border-radius:12px}.jm-brand-words strong{font-size:15px}.jm-brand-words small{font-size:9px}.jm-nav{display:none}.jm-header-cta{padding:9px 11px;font-size:12px;border-radius:10px;gap:5px}.jm-header-cta svg{width:14px;height:14px}.jm-hero-grid{padding:38px 0 37px;gap:26px}.jm-hero h1{font-size:clamp(31px,8vw,40px);letter-spacing:-1px;margin:15px 0 13px}.jm-hero p{font-size:13px;margin-bottom:22px;line-height:1.9}.jm-search{padding:5px 6px 5px 11px;gap:9px;border-radius:13px}.jm-search>svg{width:18px;height:18px}.jm-search input{font-size:12px}.jm-search button{font-size:11px;padding:8px}.jm-trending{font-size:11px;margin-top:14px}.jm-trending button{font-size:11px;padding:5px 10px}.jm-quickstart{border-radius:17px;padding:15px}.jm-preview-head{padding-bottom:11px}.jm-preview-head>div{font-size:12px}.jm-preview-small{font-size:10px}.jm-preview-list{grid-template-columns:1fr;gap:0;padding:0}.jm-preview-list li{display:flex!important;align-items:center;gap:12px;padding:10px 0}.jm-preview-list .jm-step-n{margin:0}.jm-preview-list b{font-size:12px}.jm-preview-list span{font-size:11px;margin:0}.jm-preview-bottom{padding:10px 12px}.jm-section{padding:41px 0}.jm-section-head{margin-bottom:20px}.jm-section-head h2{font-size:24px}.jm-section-head p{font-size:12px}.jm-section-count{display:none}.jm-filters{gap:7px;margin-bottom:17px;flex-wrap:nowrap;overflow-x:auto;padding-bottom:3px;margin-right:-16px;scrollbar-width:none}.jm-filters::-webkit-scrollbar{display:none}.jm-filter{white-space:nowrap;padding:8px 12px;font-size:11px;flex:0 0 auto}.jm-featured{grid-template-columns:1fr;gap:0;padding:22px;border-radius:17px}.jm-featured h3{font-size:18px}.jm-featured p{font-size:12px}.jm-featured-mark{position:absolute;right:16px;top:14px;transform:rotate(-8deg);width:44px;height:44px;border-radius:12px;opacity:.9;box-shadow:none}.jm-featured-mark svg{width:23px;height:23px}.jm-featured-top{padding-right:54px}.jm-featured-cta{margin-top:13px}.jm-cards{grid-template-columns:1fr;gap:11px}.jm-guide-card{padding:21px 23px;min-height:auto;border-radius:16px}.jm-guide-card h3{font-size:16px;margin:11px 0 6px}.jm-guide-card p{font-size:12px}.jm-guide-icon{height:41px;width:41px;border-radius:12px}.jm-guide-icon svg{width:22px;height:22px}.jm-card-foot{padding-top:16px}.jm-help-strip{margin:0 auto 43px;border-radius:17px;padding:22px;display:block}.jm-help-text{gap:12px}.jm-help-logo{height:43px;width:43px}.jm-help-text h3{font-size:14px}.jm-help-text p{font-size:11px}.jm-strip-action{margin-top:18px;display:flex;justify-content:center}.jm-footer-inner{display:block;padding:24px 0}.jm-footer-links{gap:13px 18px;margin-top:16px}.jm-footer-meta{font-size:10px}.jm-breadcrumb{padding-top:19px;font-size:11px;gap:7px}.jm-article-hero{padding:24px 0 24px}.jm-article-hero-grid{grid-template-columns:1fr}.jm-art-illustration{display:none}.jm-article-hero h1{font-size:30px;letter-spacing:-.6px}.jm-article-hero p{font-size:13px}.jm-article-stats{margin-top:13px}.jm-article-grid{padding-bottom:40px}.jm-article-body{border-radius:16px;padding:22px 18px}.jm-article-body h2{font-size:20px}.jm-article-body p{font-size:13px;line-height:1.92}.jm-article-section+.jm-article-section{margin-top:25px;padding-top:27px}.jm-lead-box{padding:15px;gap:10px}.jm-lead-box p{font-size:12px}.jm-step-card{grid-template-columns:28px 1fr;gap:10px;padding:16px 12px}.jm-step-num{height:27px;width:27px;border-radius:8px;font-size:12px}.jm-step-card:before{left:25px}.jm-step-card h3{margin-top:0}.jm-step-card p{font-size:12px}.jm-compare{grid-template-columns:1fr}.jm-qa summary{padding:13px 12px;font-size:12px}.jm-qa>.jm-qa-answer{padding:0 12px 12px}.jm-in-article-cta{padding:17px}.jm-in-article-cta .jm-btn{margin:4px 0 0;width:100%}.jm-related-links{grid-template-columns:1fr;gap:9px}.jm-related-links a{min-height:78px;padding:15px}.jm-article-footer-cta{display:block;padding:21px;border-radius:15px}.jm-article-footer-cta .jm-btn{margin-top:15px;width:100%}.jm-article-footer-cta h2{font-size:15px}.jm-mobile-action{display:flex;position:fixed;z-index:88;bottom:0;left:0;right:0;background:rgba(255,255,255,.97);border-top:1px solid #e4ebf6;padding:10px max(16px,env(safe-area-inset-left)) calc(10px + env(safe-area-inset-bottom));gap:10px;box-shadow:0 -9px 25px rgba(31,71,116,.08)}.jm-mobile-action>a{flex:1;display:flex;align-items:center;justify-content:center;border-radius:10px;background:#2563eb;color:#fff!important;font-size:13px;font-weight:800;min-height:43px}.jm-mobile-action>a:first-child{background:#edf5ff;color:#2d6dce!important;flex:.7}.jm-site.jm-article-page{padding-bottom:66px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}
/* Readability refinements after 1440px / 390px / 360px visual review. */
.jm-featured p{color:#5d7190}
.jm-guide-card p{color:#657794}
.jm-card-foot,.jm-meta{color:#6e809b}
.jm-preview-list span{color:#647995}
.jm-preview-bottom{color:#557092}
.jm-article-body p{color:#526984}
.jm-article-hero p{color:#58718e}
.jm-footer p,.jm-footer-links a{color:#677d98}
@media(max-width:620px){
 .jm-hero p,.jm-article-hero p{font-size:14px}
 .jm-guide-card p,.jm-featured p,.jm-step-card p{font-size:13px}
 .jm-article-body p{font-size:14px}
 .jm-filter{font-size:12px;min-height:40px}
 .jm-mobile-action>a{min-height:44px}
}