:root{--blue:#1676fa;--ink:#101b3b;--muted:#617394;--line:#dfeafb;--paper:#f3faff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid #176cf1;outline-offset:4px}[hidden]{display:none!important}h1,h2,h3,h4,p{margin:0}h1,h2,h3{line-height:1.4}p{color:var(--muted)}.shell{max-width:1280px;padding:0 28px;margin:auto}header{position:sticky;top:0;z-index:20;background:#f7fbffed;border-bottom:1px solid #e8f0fa;backdrop-filter:blur(16px)}.nav-shell{height:76px;display:flex;align-items:center;gap:34px}.brand{display:flex;align-items:center;gap:13px;flex-shrink:0}.brand img{width:44px;height:44px;object-fit:contain}.brand strong{font-size:23px;line-height:1.15;display:block}.brand small{display:block;font-size:12px;color:var(--muted)}header nav{display:flex;gap:26px;margin-left:auto;font-size:14px;color:#5d739b}header nav a:hover{color:var(--blue)}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;white-space:nowrap;padding:13px 23px;border-radius:40px;font-weight:650;font-size:15px;border:1px solid transparent;transition:transform .18s,box-shadow .18s}.button:hover{transform:translateY(-2px)}.primary{color:white;background:var(--blue);box-shadow:0 7px 17px #1676fa25}.secondary{background:#fff;color:#14234b;border-color:#e5edfb}.outline{border-color:#c7dcff;color:white;background:transparent}.account{font-size:13px;padding:10px 22px}.menu-toggle{display:none;border:1px solid var(--line);background:white;border-radius:10px;width:44px;height:44px;align-items:center;justify-content:center}svg{width:22px;height:22px;flex-shrink:0}.hero{background:#e5f2ff;padding:58px 0 30px}.hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:30px;align-items:center}.tag{display:inline-flex;align-items:center;gap:8px;color:#1166f0;border:1px solid #cddffb;border-radius:30px;padding:4px 13px;font-size:13px;font-weight:650;background:#f8fcff}.tag svg{width:16px;height:16px}h1{font-size:clamp(32px,3.1vw,45px);line-height:1.2;letter-spacing:-1.3px;margin:22px 0 16px}.hero h3{font-size:21px;margin-bottom:10px}.hero-copy>p{font-size:17px;line-height:1.75}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}.meta{display:block;color:#6a82a8;margin-top:12px;font-size:12px}.hero-visual{position:relative;padding:0 30px 36px 0;min-width:0}.hero-workbench-shot{display:block;width:100%;height:auto;border-radius:8px;box-shadow:0 15px 40px #3874c920}.hero-login-layer{position:absolute;width:27%;right:0;bottom:0}.hero-login-shot{width:100%;height:auto;display:block;border-radius:12px;box-shadow:0 14px 26px #294e8526}.benefits{display:grid;grid-template-columns:repeat(3,1fr);background:#ffffffbf;border:1px solid var(--line);border-radius:16px;margin-top:38px;overflow:hidden}.benefits article{padding:22px;display:flex;align-items:center;gap:20px}.benefits article+article{border-left:1px solid var(--line)}.icon-ring,.icon-disc{display:inline-flex;align-items:center;justify-content:center;flex:0 0 66px;height:66px;border-radius:50%;color:#1474ff;background:#f5fbff;border:1px solid #d5e6ff}.icon-ring svg,.icon-disc svg{width:30px;height:30px}.benefits h3{font-size:16px;margin-bottom:5px}.benefits p{font-size:13px;line-height:1.6}.section{padding-top:42px;padding-bottom:8px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:22px}.section-heading h2{font-size:32px;letter-spacing:-.7px;margin-top:12px}.section-heading>p{font-size:14px;max-width:375px;flex:0 1 35%;line-height:1.8}.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.safety-card{background:#ffffffc9;border:1px solid var(--line);border-radius:16px;padding:25px;display:flex;gap:22px}.icon-disc{background:#edf6ff;border:0;flex-basis:68px;height:68px}.safety-card h3{font-size:20px;margin-bottom:6px}.safety-card h4{font-size:16px;color:#2265f1;font-weight:550;margin-bottom:10px}.safety-card p,.safety-card ul{font-size:14px;line-height:1.9;color:#617394}.safety-card ul{padding-left:19px;margin:0}.safety-card li::marker{color:#427aff}.quiet-link{display:flex;align-items:center;justify-content:flex-end;gap:8px;color:#356ed6;font-size:13px;margin-top:14px}.quiet-link svg{width:16px}.scenarios{display:grid;grid-template-columns:repeat(3,1fr);background:#ffffffbc;border:1px solid var(--line);border-radius:16px;overflow:hidden}.scenarios article{padding:25px 28px}.scenarios article+article{border-left:1px solid var(--line)}.scenario-eyebrow{display:flex;align-items:center;gap:15px;color:#2874ff;font-size:15px;font-weight:600;margin-bottom:22px}.scenario-eyebrow svg{background:#edf7ff;box-sizing:content-box;padding:12px;border-radius:50%}.scenarios h3{font-size:22px;margin-bottom:10px}.scenarios p{font-size:14px;line-height:1.9}.scenarios ul{list-style:none;margin:16px 0;padding:0;color:#697c9e;font-size:14px}.scenarios li{display:flex;gap:9px;align-items:center;margin:6px 0}.scenarios li svg{color:#267bff;width:16px;height:16px}.scenarios a{display:inline-flex;align-items:center;gap:14px;color:#1670fa;font-weight:600;font-size:15px}.section-intro{font-size:15px;margin-top:-12px}.setup-strip{margin-top:20px}.setup-strip article{padding:16px 20px}.setup-strip .icon-ring{height:54px;flex-basis:54px}.steps-shell{background:#ffffffb8;border:1px solid var(--line);border-radius:16px;margin-top:18px;padding:20px}.steps-shell>h3{font-size:25px;margin:8px 0 0}.steps-shell>p{font-size:14px}.tabs{display:flex;border:1px solid var(--line);border-radius:11px;overflow:hidden;margin-top:14px}.tabs button{flex:1;display:flex;justify-content:center;align-items:center;gap:10px;padding:13px 10px;border:0;background:#f8fcff;color:#7689aa;font-size:15px;font-weight:600}.tabs button+button{border-left:1px solid var(--line)}.tabs button[aria-selected=true]{color:#fff;background:#5577f4}.tabs span{display:inline-flex;border:1px solid currentColor;border-radius:50%;width:23px;height:23px;align-items:center;justify-content:center;font-size:13px}#step-panel{padding:24px 8px 3px}.step-grid{display:grid;grid-template-columns:1fr 1.65fr;gap:30px}.step-copy h4{font-size:18px;margin-bottom:12px}.step-copy ul{padding-left:20px;margin:0;color:#657c9f;font-size:14px}.step-copy li{margin:7px 0}.step-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.step-card{padding:18px 15px;border:1px solid #e4ecfb;border-radius:12px;background:#f8fbff}.step-card svg{color:#3776ff;margin-bottom:10px}.step-card h4{font-size:15px;margin-bottom:6px}.step-card p{font-size:13px}.step-note{display:flex;justify-content:center;gap:10px;margin-top:22px;font-size:13px;color:#3977ea}.step-note svg{width:18px;height:18px}.security-guidance-head{display:flex;justify-content:space-between;gap:30px;margin-bottom:24px}.security-block-label{font-size:14px;color:#5480b4;font-weight:600;letter-spacing:1px}.security-guidance-head h3{font-size:25px;margin-top:8px}.security-guidance-head>p{max-width:520px;font-size:15px;flex:0 1 48%}.security-guidance-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.security-guidance-card{padding:25px;background:#f8fcff;border:1px solid #d5e6ff;border-radius:20px}.security-guidance-card--warning{border-color:#fbe1d0}.security-guidance-title{display:flex;align-items:center;gap:16px;margin-bottom:16px}.security-guidance-title>span{display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:15px;background:#e8f2ff;color:#1676fa}.security-guidance-card--warning .security-guidance-title>span{background:#fff1e9;color:#e77d3d}.security-guidance-title h3{font-size:20px}.security-guidance-card ul{padding-left:21px;margin:0;font-size:14px;line-height:1.9;color:#647897}.security-guidance-card li{margin:9px 0}.final-section{padding-top:36px;padding-bottom:28px}.final-cta{background:#5d81f5;border-radius:14px;color:white;padding:27px 32px;display:flex;align-items:center;justify-content:space-between;gap:22px}.final-cta h2{font-size:27px}.final-cta p{color:#ecf3ff;font-size:14px;margin-top:8px}.final-cta .actions{margin:0;flex-shrink:0}.final-cta .button{font-size:14px;padding:10px 19px}.final-cta .secondary{color:#3f73ee}footer{padding-top:5px!important;padding-bottom:22px!important}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1.15fr;gap:28px;align-items:start}.footer-grid>div{display:flex;flex-direction:column;font-size:13px;color:#6a7d9c;line-height:1.9}.footer-grid strong{color:#243655;font-size:14px;margin-bottom:5px}.footer-grid .brand strong{font-size:21px}.qr{width:148px;max-width:100%;height:auto}.copyright{display:flex;justify-content:space-between;color:#7d8ca6;font-size:12px;margin-top:26px}.mobile-nav{padding:18px 28px;border-top:1px solid var(--line)}
@media(min-width:1500px){.shell{max-width:1380px}.hero{padding-top:70px}.hero h1{font-size:48px}}
@media(max-width:1050px){.nav-shell{gap:16px}header nav{gap:16px;font-size:12px}.account{padding:9px 14px}.brand strong{font-size:20px}.hero-grid{gap:22px}h1{font-size:34px}.hero h3{font-size:18px}.hero-copy>p{font-size:15px}.button{font-size:13px;padding:11px 16px}.benefits article{gap:13px;padding:20px 16px}.icon-ring{flex-basis:52px;height:52px}.section-heading h2{font-size:28px}.safety-card{padding:20px;gap:16px}.icon-disc{flex-basis:55px;height:55px}.safety-card h4{font-size:14px}.scenarios article{padding:22px}.final-cta{flex-wrap:wrap}.step-cards{gap:8px}.step-card{padding:13px}}
@media(max-width:760px){.shell{padding-left:20px;padding-right:20px}.nav-shell{height:68px}.nav-shell>nav,.account{display:none}.menu-toggle{display:flex;margin-left:auto}.mobile-nav{display:flex;flex-direction:column;margin:0;gap:15px}.hero{padding-top:30px}.hero-grid{grid-template-columns:1fr}.hero-copy{text-align:left}h1{font-size:33px;letter-spacing:-.8px}.hero h3{font-size:17px}.hero-copy>p{font-size:15px}.desktop-break{display:none}.hero-visual{margin-top:8px;max-width:540px;padding-right:36px;padding-bottom:34px}.hero-login-layer{width:25%}.benefits{grid-template-columns:1fr;margin-top:22px}.benefits article+article{border-left:0;border-top:1px solid var(--line)}.benefits article{padding:18px}.section{padding-top:32px}.section-heading{display:block;margin-bottom:18px}.section-heading h2{font-size:27px;margin-top:12px}.section-heading>p{max-width:none;margin-top:12px;font-size:14px}.safety-grid,.scenarios,.security-guidance-grid{grid-template-columns:1fr}.safety-card{gap:16px;padding:22px 18px}.safety-card h3{font-size:19px}.safety-card h4{font-size:14px}.safety-card p{font-size:14px}.scenarios article+article{border-left:0;border-top:1px solid var(--line)}.scenario-eyebrow{margin-bottom:15px}.scenarios article{padding:23px}.section-intro{margin-top:0}.setup-strip{margin-top:18px}.steps-shell{padding:16px}.tabs button{font-size:12px;flex-direction:column;padding:12px 5px;gap:6px}.step-grid{grid-template-columns:1fr;gap:20px}.step-cards{grid-template-columns:1fr}.step-card{padding:16px}.step-card svg{float:left;margin:2px 14px 0 0}.step-note{font-size:12px;align-items:flex-start}.security-guidance-head{display:block}.security-guidance-head>p{margin-top:12px;font-size:14px}.security-guidance-card{padding:22px}.final-cta{padding:25px 22px}.final-cta h2{font-size:25px}.final-cta .actions{flex-shrink:1}.footer-grid{grid-template-columns:repeat(3,1fr);gap:24px 18px}.footer-grid>.brand{grid-column:1/-1}.footer-grid>.qr{grid-column:1/-1}.copyright{gap:12px;flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
@media(max-width:420px){.hero h1{font-size:27px;line-height:1.35;letter-spacing:-.7px}}

/* Restore the original homepage's real-screenshot treatment. */
.hero-visual--concept {
  overflow: visible;
  isolation: isolate;
  align-self: center;
  min-height: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 1.5rem 0 5.5rem;
  box-shadow: none;
}
.hero-visual--concept .hero-workbench-shot {
  position: relative;
  z-index: 2;
  display: block;
  width: 92%;
  height: auto;
  margin-left: 0;
  border-radius: .55rem;
  clip-path: inset(1px round .55rem);
  box-shadow: none;
  filter: drop-shadow(0 0 1.5px rgba(71,85,105,.24)) drop-shadow(0 28px 34px rgba(59,81,147,.17));
}
.hero-visual--concept .hero-login-layer {
  position: absolute;
  z-index: 4;
  right: .3rem;
  bottom: 3rem;
  width: clamp(9.5rem,24%,11rem);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.92);
  border-radius: .85rem;
  background: #f8fafc;
  box-shadow: 0 34px 64px rgba(52,76,145,.2), 0 9px 22px rgba(15,23,42,.07), 0 0 72px rgba(71,111,238,.2), 0 0 0 1px rgba(112,137,211,.12);
  isolation: isolate;
}
.hero-visual--concept .hero-login-shot {
  position: relative;
  display: block;
  width: calc(100% + 2px);
  max-width: none;
  height: auto;
  margin: -1px;
  border: 0;
  border-radius: inherit;
  clip-path: none;
  filter: none;
  box-shadow: none;
}
@media(min-width:1200px){.hero-visual--concept{width:105%;max-width:none;justify-self:start}}
@media(min-width:761px) and (max-width:1023px){
  .hero-visual--concept{padding:1rem 2rem 4.5rem}
  .hero-visual--concept .hero-workbench-shot{width:100%}
  .hero-visual--concept .hero-login-layer{right:0;bottom:0;width:min(12rem,31%)}
}
@media(max-width:760px){
  .hero-visual--concept{padding:0 0 4.75rem;width:100%}
  .hero-visual--concept .hero-workbench-shot{width:100%}
  .hero-visual--concept .hero-login-layer{right:.25rem;bottom:0;width:min(9.5rem,32%)}
}

.mobile-nav button { border: 0; background: transparent; color: inherit; text-align: left; padding: 12px 24px; }

/* Restore semantic defaults after the authentication utility reset. */
main h1, main h2, main h3, main h4 { font-weight: 700; }
.safety-card h4 { font-weight: 550; }
.safety-card ul, .step-copy ul, .security-guidance-card ul { list-style-type: disc; }

.security-guidance-note{margin-top:18px;font-size:13px;line-height:1.8;color:#617394}.security-guidance-note a{display:inline-flex;align-items:center;gap:5px;margin-left:8px;color:#1166d6;text-decoration:underline;text-underline-offset:3px}.security-guidance-note a svg{width:15px;height:15px}