@charset "UTF-8";
:root{--ink:#182338;--muted:#66738a;--blue:#337ef0;--blue-dark:#2365d6;--pale:#f5f7fb;--line:#e6eaf1;--white:#fff;--mint:#dff7ec;--shadow:0 18px 50px rgba(36,59,96,.08)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--pale);color:var(--ink);font-family:"DM Sans","Noto Sans SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{display:block;max-width:100%}
.wrap{width:min(1120px,calc(100% - 48px));margin-inline:auto}
.domain-banner{display:block;margin-top:18px;border-radius:20px;overflow:hidden;box-shadow:0 13px 34px rgba(35,88,156,.16)}
.domain-banner picture,.domain-banner img{display:block;width:100%}.domain-banner img{height:auto}
.skip-link{position:absolute;top:-60px;left:16px;z-index:20;padding:10px 16px;background:var(--ink);color:#fff;border-radius:8px}
.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.92);border-bottom:1px solid rgba(230,234,241,.8);backdrop-filter:blur(14px)}
.header-inner{width:min(1180px,calc(100% - 40px));min-height:74px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);font-size:15px;font-weight:800;line-height:1.15;text-decoration:none;letter-spacing:.01em;white-space:nowrap}
.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:13px;background:linear-gradient(140deg,#60a5fa,#367cf0);color:#fff;font-size:19px;font-weight:800;box-shadow:0 7px 18px rgba(51,126,240,.23)}
.brand-sub{display:block;margin-top:5px;color:#8792a5;font-size:9px;font-weight:700;letter-spacing:.15em}
.main-nav{display:flex;align-items:center;gap:5px}
.main-nav a{padding:9px 12px;border-radius:9px;color:#67748a;font-size:13px;font-weight:600;text-decoration:none;transition:background .2s,color .2s}
.main-nav a:hover,.main-nav a[aria-current=page]{background:#edf4ff;color:var(--blue-dark)}
.menu-toggle{display:none;padding:8px 13px;border:1px solid var(--line);border-radius:9px;background:white;color:var(--ink);font:inherit;font-size:14px}
.hero{position:relative;min-height:540px;display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:44px;padding-block:58px 75px}
.hero-copy{position:relative;z-index:1;padding-block:16px}
.eyebrow{margin:0 0 18px;color:#55749f;font-size:11px;font-weight:700;letter-spacing:.17em;text-transform:uppercase}
.eyebrow-dot{display:inline-block;width:8px;height:8px;margin-right:8px;border-radius:50%;background:#4dbb94;box-shadow:0 0 0 5px #e2f7ee}
h1,h2,h3,p{margin-top:0}
h1{margin-bottom:20px;font-size:clamp(36px,5vw,58px);font-weight:800;line-height:1.18;letter-spacing:-.045em}
.text-gradient{color:var(--blue)}
.hero-lead{max-width:520px;margin-bottom:28px;color:var(--muted);font-size:16px;line-height:1.95}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.button{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:10px 18px;border:1px solid transparent;border-radius:10px;font-size:13px;font-weight:700;text-decoration:none;transition:transform .2s,box-shadow .2s,background .2s}
.button:hover{transform:translateY(-2px)}
.button-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(51,126,240,.2)}
.button-primary:hover{background:var(--blue-dark);box-shadow:0 10px 22px rgba(51,126,240,.26)}
.button-quiet{background:transparent;color:#526078}
.button-quiet:hover{background:#eaf0f9}
.button-outline{border-color:#dce4ef;background:white;color:#53627a}
.button-outline:hover{border-color:#b8cbe9;background:#f9fbff}
.button-disabled{background:#eff2f6;color:#8e98a8;cursor:not-allowed}
.hero-note{margin:18px 0 0;color:#8a96a8;font-size:11px}
.hero-note span{color:#6b8cc3}
.hero-art{position:relative;min-height:390px;display:grid;place-items:center}
.hero-art:before{position:absolute;width:360px;height:360px;border-radius:50%;background:linear-gradient(145deg,#e6f0ff,#ecf8f3);content:""}
.hero-art img{position:relative;width:min(100%,450px);filter:drop-shadow(0 18px 18px rgba(47,82,132,.12))}
.float-card{position:absolute;z-index:1;display:flex;align-items:center;gap:10px;padding:12px 15px;border:1px solid rgba(229,234,242,.9);border-radius:13px;background:rgba(255,255,255,.94);box-shadow:0 10px 32px rgba(50,68,102,.1)}
.float-card-top{top:66px;right:4px}.float-card-bottom{bottom:42px;left:-12px}
.float-card strong,.float-card small{display:block}.float-card strong{font-size:12px}.float-card small{color:#8490a3;font-size:10px}
.float-icon{width:30px;height:30px;display:grid;place-items:center;border-radius:9px;font-weight:800}.mint{background:#e5f8ef;color:#2eaa76}.lilac{background:#f0ebff;color:#795ed4}
.section-block{padding-block:45px 72px}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:25px}
.section-heading h2{margin:0;font-size:27px;letter-spacing:-.03em}
.section-heading .eyebrow{margin-bottom:8px}
.section-heading>p{max-width:360px;margin:0 0 3px;color:var(--muted);font-size:13px}
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.step-card{position:relative;min-height:250px;padding:23px 21px 19px;border:1px solid #e9edf4;border-radius:16px;background:#fff;text-decoration:none;transition:transform .22s,box-shadow .22s,border-color .22s}
.step-card:hover{transform:translateY(-4px);border-color:#d2e2fb;box-shadow:var(--shadow)}
.step-number{position:absolute;top:18px;right:19px;color:#c4ccda;font-size:11px;font-weight:700;letter-spacing:.1em}
.step-icon{width:44px;height:44px;display:grid;place-items:center;border-radius:13px;font-size:21px;font-weight:700}
.icon-blue{background:#eaf2ff;color:#377ce3}.icon-purple{background:#f0edff;color:#7961d6}.icon-green{background:#e5f8ef;color:#2ba676}.icon-orange{background:#fff2e6;color:#e9944d}
.step-card h3{margin:18px 0 7px;font-size:16px}.step-card p{min-height:51px;margin-bottom:15px;color:var(--muted);font-size:12px;line-height:1.8}
.card-link{color:#397ce0;font-size:12px;font-weight:700}.card-link b{padding-left:4px}
.feature-band{display:grid;grid-template-columns:.85fr 1.15fr;align-items:center;gap:70px;margin-block:0 30px;padding:38px 70px;border:1px solid #e7edf4;border-radius:23px;background:linear-gradient(120deg,#fff,#f0f6ff)}
.feature-art{display:grid;place-items:center;min-height:220px}.feature-art img{width:210px;max-height:225px}
.feature-copy .eyebrow{margin-bottom:8px}.feature-copy h2{margin-bottom:12px;font-size:27px;letter-spacing:-.03em}.feature-copy p{margin-bottom:15px;color:var(--muted);font-size:13px;line-height:1.9}
.text-link{color:var(--blue-dark);font-size:13px;font-weight:700;text-decoration:none}.text-link:hover{text-decoration:underline}
.notice-card{display:grid;grid-template-columns:43px 1fr auto;align-items:center;gap:19px;padding:24px 27px;border:1px solid #f1e6d6;border-radius:16px;background:#fffaf3}
.notice-symbol{width:39px;height:39px;display:grid;place-items:center;border-radius:50%;background:#fff0d9;color:#db9a3e;font-size:19px;font-weight:800}
.notice-card h2{margin:0 0 5px;font-size:15px}.notice-card p{max-width:730px;margin:0;color:#7b7468;font-size:12px;line-height:1.85}
.site-footer{border-top:1px solid #e7ebf1;background:#fff}
.footer-inner{min-height:120px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:22px}
.footer-inner p{margin:0;color:#8791a1;font-size:11px}.copyright{color:#9aa3b1;font-size:10px;text-align:right}
.page-hero{padding-block:61px 34px}
.page-hero .eyebrow{margin-bottom:12px}
.page-hero h1{margin-bottom:13px;font-size:clamp(32px,4vw,45px)}
.page-hero>p:not(.eyebrow){max-width:760px;margin-bottom:18px;color:var(--muted);font-size:14px;line-height:1.9}
.breadcrumbs{display:flex;gap:10px;color:#8994a5;font-size:11px}.breadcrumbs a{color:#557caf;text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;align-items:start;gap:50px;padding-block:14px 75px}
.article-content{min-width:0;padding:34px 40px;border:1px solid #e9edf4;border-radius:18px;background:#fff}
.article-content h2{margin:32px 0 12px;font-size:21px;line-height:1.4;letter-spacing:-.02em}.article-content h2:first-child{margin-top:0}
.article-content p{color:#5d6a7e;font-size:14px;line-height:1.95}
.article-content a:not(.button){color:#3275d7}
.article-content ul,.article-content ol{padding-left:23px;color:#5d6a7e;font-size:14px;line-height:1.95}
.article-content li{padding-left:5px;margin:8px 0}
.check-list{list-style:none;padding-left:0!important}
.check-list li{position:relative;padding-left:29px}
.check-list li:before{position:absolute;left:0;top:1px;width:19px;height:19px;display:grid;place-items:center;border-radius:50%;background:#e4f7ef;color:#2eaa76;font-size:12px;font-weight:800;content:"✓"}
.numbered-steps{counter-reset:guide-step;list-style:none;padding:0!important}
.numbered-steps li{position:relative;min-height:40px;padding-left:45px!important;margin:15px 0!important}
.numbered-steps li:before{position:absolute;left:0;top:0;width:29px;height:29px;display:grid;place-items:center;border-radius:9px;background:#edf4ff;color:#397ce0;font-size:12px;font-weight:800;counter-increment:guide-step;content:counter(guide-step,decimal-leading-zero)}
.numbered-steps strong{color:var(--ink)}
.callout{margin:22px 0;padding:17px 19px;border-left:3px solid #66a0ef;border-radius:0 11px 11px 0;background:#f2f7ff}
.callout strong{display:block;margin-bottom:4px;color:#344f77;font-size:13px}
.callout p{margin:0;color:#64738a;font-size:12px}
.callout-warm{border-left-color:#eba950;background:#fff8ed}.callout-warm strong{color:#7e602f}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;color:#5d6a7e;font-size:12px}
th,td{padding:12px 13px;border:1px solid #e7ebf1;text-align:left;vertical-align:top}
th{background:#f5f8fc;color:#34435b;font-weight:700}
.article-next{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:34px;padding-top:23px;border-top:1px solid #edf0f4}
.article-aside{position:sticky;top:98px;display:grid;gap:14px}
.aside-card{padding:20px;border:1px solid #e8edf4;border-radius:15px;background:#fff}
.aside-kicker{color:#8a96a8;font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.aside-card ol{padding-left:19px;margin:13px 0 0;color:#607088;font-size:12px;line-height:2.1}
.aside-tint{background:linear-gradient(145deg,#f0f6ff,#f7fbff);border-color:#e3edfb}
.aside-icon{width:33px;height:33px;display:grid;place-items:center;margin:13px 0 8px;border-radius:10px;background:#fff;color:#4382dc;font-size:17px;font-weight:700}
.aside-card h3{margin:0 0 7px;font-size:14px}.aside-card p{margin:0 0 10px;color:#738096;font-size:11px;line-height:1.8}
.aside-card>a{color:#3375cf;font-size:11px;font-weight:700;text-decoration:none}
.platform-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px;padding-bottom:16px;border-bottom:1px solid #edf0f4}
.platform-tabs a{padding:8px 13px;border:1px solid #e3eaf4;border-radius:9px;background:#f8faff;font-size:12px;font-weight:700;text-decoration:none}
.platform-section{padding-block:12px 24px;border-bottom:1px solid #edf0f4;scroll-margin-top:96px}
.platform-title{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.platform-title .step-icon{flex:0 0 44px}
.platform-title .aside-kicker{display:block;margin-bottom:2px}.platform-title h2{margin:0!important}
.external-link{display:inline-flex;gap:7px;align-items:center;margin:4px 0 8px;font-size:12px;font-weight:700;text-decoration:none}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.info-card{padding:15px;border:1px solid #e9edf3;border-radius:12px;background:#fbfcfe}
.info-label{display:block;margin-bottom:5px;color:#3c5f91;font-size:12px;font-weight:700}.info-card p{margin:0;font-size:11px;line-height:1.8}
.security-checklist{display:grid;gap:5px}
.security-item{display:grid;grid-template-columns:40px 1fr;gap:15px;padding:17px 0;border-bottom:1px solid #edf0f4}
.security-number{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:#edf4ff;color:#397ce0;font-size:11px;font-weight:800}
.security-item h2{margin:1px 0 5px!important;font-size:17px}
.security-item p{margin:0;font-size:12px;line-height:1.9}
.service-section{padding-block:15px 72px}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
.service-card{position:relative;min-height:310px;padding:23px;border:1px solid #e7ebf1;border-radius:17px;background:#fff;box-shadow:0 8px 28px rgba(36,59,96,.04)}
.service-slot{color:#71819a;font-size:10px;font-weight:700;letter-spacing:.12em}
.service-status{position:absolute;top:18px;right:18px;padding:5px 8px;border-radius:20px;background:#fff4e4;color:#b77e2d;font-size:9px;font-weight:700}
.service-placeholder{width:52px;height:52px;display:grid;place-items:center;margin:24px 0 15px;border:1px dashed #cbd7e8;border-radius:15px;background:#f5f8fc;color:#91a2ba;font-size:16px;font-weight:700}
.service-card h2{margin:0 0 8px;font-size:16px}.service-card p{min-height:67px;margin:0 0 16px;color:#728096;font-size:11px;line-height:1.8}
.service-card .button{min-height:36px;padding:7px 12px;font-size:11px}
.service-disclaimer{display:grid;grid-template-columns:42px 1fr;gap:17px;margin-top:22px;padding:24px;border:1px solid #f1e6d6;border-radius:15px;background:#fffaf3}
.service-disclaimer h2{margin:0 0 8px;font-size:16px}.service-disclaimer p{margin:0 0 9px;color:#776f64;font-size:12px;line-height:1.9}.service-disclaimer p:last-child{margin-bottom:0}
.account-option{scroll-margin-top:96px;margin-top:32px;padding:23px;border:1px solid #dbe8fa;border-radius:15px;background:#f8fbff}
.account-option h2{margin:6px 0 10px}.account-option>.button{margin:3px 0 4px}.account-option .callout{margin-bottom:0}
.account-option .numbered-steps{margin-top:20px}.download-links{display:flex;flex-wrap:wrap;gap:9px;margin:12px 0}
.channel-invite{scroll-margin-top:96px;margin:25px 0 32px;padding:24px;border:1px solid #cfe6d9;border-radius:16px;background:linear-gradient(135deg,#effaf4,#f0f6ff)}
.channel-invite .eyebrow{margin-bottom:5px;color:#399474}.channel-invite h2{margin:0 0 9px!important}.channel-invite p:not(.eyebrow){margin-bottom:14px}.channel-invite .button{min-height:42px}.purchase-next{margin:18px 0 0!important}
.home-channel{display:flex;align-items:center;justify-content:space-between;gap:25px;margin:0 auto 64px}.home-channel>div{max-width:650px}.home-channel .button{flex:none}
.account-paths{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin-bottom:34px}.account-path{padding:20px;border:1px solid #dfebf8;border-radius:14px;background:#f7fbff}.account-path-alt{border-color:#d8eadf;background:#f4fbf6}.account-path h2{margin:7px 0 8px!important;font-size:17px}.account-path p{min-height:75px;margin:0 0 12px;font-size:12px;line-height:1.8}.account-path .button{min-height:38px;padding:7px 12px}.path-detail{display:block;margin-top:10px;font-size:12px;font-weight:700;text-decoration:none}
@media(max-width:700px){.home-channel{display:block;margin-bottom:44px;padding:20px}.home-channel .button{margin-top:4px}.account-paths{grid-template-columns:1fr}.account-path p{min-height:0}}
@media(max-width:900px){.header-inner{width:min(100% - 32px,1180px)}.main-nav{gap:0}.main-nav a{padding:8px 8px;font-size:11px}.hero{gap:20px}.hero-art:before{width:300px;height:300px}.step-grid{grid-template-columns:repeat(2,1fr)}.article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:24px}.article-content{padding:29px}.feature-band{gap:35px;padding-inline:40px}.service-card{padding:19px}}
@media(max-width:700px){.wrap{width:calc(100% - 36px)}.header-inner{min-height:66px;width:calc(100% - 32px)}.menu-toggle{display:inline-flex;align-items:center;gap:6px}.main-nav{position:absolute;top:65px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:3px;padding:10px 16px 15px;border-bottom:1px solid var(--line);background:#fff;box-shadow:0 14px 20px rgba(30,48,78,.08)}.main-nav.is-open{display:flex}.main-nav a{padding:11px 12px;font-size:13px}.hero{min-height:unset;grid-template-columns:1fr;gap:0;padding-block:45px 28px}.hero-copy{padding:0}.hero h1{font-size:clamp(38px,11vw,52px)}.hero-lead{font-size:14px}.hero-art{min-height:280px;margin-top:6px}.hero-art:before{width:250px;height:250px}.hero-art img{width:min(86%,340px)}.float-card-top{top:25px;right:0}.float-card-bottom{bottom:22px;left:0}.float-card{padding:9px 11px}.section-block{padding-block:33px 47px}.section-heading{display:block}.section-heading h2{font-size:23px}.section-heading>p{margin-top:10px;font-size:12px}.step-grid{gap:11px}.step-card{min-height:235px;padding:18px 15px}.step-card h3{font-size:14px}.step-card p{font-size:11px}.step-number{top:14px;right:14px}.feature-band{grid-template-columns:1fr;gap:8px;margin-top:0;padding:23px 24px}.feature-art{min-height:145px}.feature-art img{width:145px;max-height:150px}.feature-copy h2{font-size:22px}.notice-card{grid-template-columns:38px 1fr;gap:13px;padding:19px}.notice-card .button{grid-column:2;justify-self:start}.footer-inner{grid-template-columns:1fr;gap:10px;padding-block:21px}.footer-inner p{margin:0}.copyright{text-align:left}.page-hero{padding-block:39px 22px}.page-hero h1{font-size:34px}.page-hero>p:not(.eyebrow){font-size:13px}.article-layout{grid-template-columns:1fr;gap:16px;padding-block:8px 48px}.article-content{padding:23px 19px}.article-content h2{font-size:19px}.article-content p,.article-content ul,.article-content ol{font-size:13px}.article-aside{position:static;grid-template-columns:1fr 1fr}.aside-card{padding:15px}.aside-card ol{font-size:11px}.aside-card p{font-size:10px}.info-grid{grid-template-columns:1fr}.service-section{padding-block:12px 48px}.service-grid{grid-template-columns:1fr}.service-card{min-height:unset;padding:20px}.service-placeholder{margin:18px 0 12px}.service-card p{min-height:0}.service-disclaimer{grid-template-columns:34px 1fr;gap:12px;padding:17px}.platform-tabs{margin-bottom:22px}.article-next{justify-content:flex-start}.article-next .button{width:100%}}
@media(max-width:380px){.step-grid{grid-template-columns:1fr}.step-card{min-height:unset}.step-card p{min-height:unset}.article-aside{grid-template-columns:1fr}.hero-actions .button{width:100%}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}
.flow-figure{margin:18px 0 24px;padding:12px;border:1px solid #e7edf4;border-radius:14px;background:#f8fbff}
.flow-figure img{width:100%;height:auto}
.flow-figure figcaption{padding:5px 8px 2px;color:#738096;font-size:11px;text-align:center}
.flow-figure figcaption a{font-weight:700}
.flow-list{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:0 0 30px!important;padding:0!important;list-style:none}
.flow-list li{display:flex;align-items:center;gap:9px;min-height:48px;padding:8px 11px;border:1px solid #e8edf4;border-radius:10px;background:#fbfcfe;color:#56657b;font-size:11px;font-weight:600}
.flow-list li span{width:25px;height:25px;flex:0 0 25px;display:grid;place-items:center;border-radius:8px;background:#eaf2ff;color:#397ce0;font-size:9px;font-weight:800}
.tutorial-steps{display:grid;gap:0;margin:7px 0 26px}
.tutorial-step{display:grid;grid-template-columns:38px 1fr;gap:14px;padding:19px 0;border-bottom:1px solid #edf0f4}
.tutorial-number{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;background:#edf4ff;color:#397ce0;font-size:11px;font-weight:800}
.tutorial-step h3{margin:0 0 6px;font-size:16px}
.tutorial-step p{margin:0 0 7px;font-size:12px;line-height:1.9}
.tutorial-step .step-tip{margin:0;padding:8px 11px;border-radius:8px;background:#f7f9fc;color:#7b8799;font-size:11px}
@media(max-width:700px){.flow-figure{margin-bottom:18px;padding:8px;overflow-x:auto}.flow-figure img{width:760px;max-width:none}.flow-figure figcaption{min-width:760px;padding:3px 5px;font-size:11px}.tutorial-step{grid-template-columns:32px 1fr;gap:11px}.tutorial-number{width:30px;height:30px}.download-links .button{width:100%}}