:root{
  --blue:oklch(0.56 0.21 256);--blue-dark:oklch(0.47 0.2 256);--green:oklch(0.63 0.17 155);
  --ink:oklch(0.25 0.025 255);--muted:oklch(0.48 0.025 255);--line:oklch(0.9 0.015 250);
  --paper:oklch(0.995 0.003 250);--soft:oklch(0.975 0.012 250);--pale-blue:oklch(0.95 0.035 250);
  --danger:oklch(0.53 0.18 28);--danger-bg:oklch(0.97 0.025 28);
  --container:1180px;--radius:16px;--shadow:0 24px 70px oklch(0.3 0.05 255 / .1)
}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:88px}body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:16px;line-height:1.75;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}.container{width:min(calc(100% - 40px),var(--container));margin-inline:auto}.section{padding:104px 0}:focus-visible{outline:3px solid oklch(0.65 0.18 240);outline-offset:4px}::selection{background:var(--pale-blue)}
.site-header{position:sticky;top:0;z-index:20;background:oklch(0.995 0.003 250 / .94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.nav-wrap{height:76px;width:min(calc(100% - 40px),var(--container));margin:auto;display:flex;align-items:center;gap:32px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;letter-spacing:-.6px;margin-right:auto}.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--blue);color:var(--paper)}.brand-mark svg{width:23px}.brand small{display:block;font-size:10px;line-height:1;letter-spacing:3px;color:var(--muted);font-weight:600;margin-top:2px}.desktop-nav{display:flex;gap:28px;font-size:14px;font-weight:600}.desktop-nav a{padding:12px 0;transition:color .2s}.desktop-nav a:hover{color:var(--blue)}.nav-cta{display:flex;align-items:center;gap:8px;background:var(--blue);color:var(--paper);border-radius:10px;padding:10px 18px;font-size:14px;font-weight:700;transition:background .2s,transform .2s}.nav-cta:hover{background:var(--blue-dark);transform:translateY(-1px)}.nav-cta svg{width:17px}.menu-btn{display:none;border:0;background:none;width:44px;height:44px;color:var(--ink)}.mobile-nav{padding:8px 20px 18px;border-top:1px solid var(--line)}.mobile-nav a{display:block;padding:12px 4px;border-bottom:1px solid var(--line);font-weight:600}
.hero{position:relative;background:var(--soft);overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:64px 64px;opacity:.28;mask-image:linear-gradient(90deg,transparent,black)}.hero-grid{min-height:690px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:60px;position:relative}.hero-copy{padding:72px 0}.availability{display:inline-flex;align-items:center;gap:8px;background:var(--paper);border:1px solid var(--line);padding:7px 12px;border-radius:6px;font-size:13px;font-weight:600;color:var(--muted)}.availability span{width:7px;height:7px;background:var(--green);border-radius:50%}.hero h1{font-size:clamp(44px,5.4vw,72px);line-height:1.14;letter-spacing:-3px;margin:26px 0 24px;font-weight:900}.hero h1 em{font-style:normal;color:var(--blue)}.hero-desc{max-width:34em;font-size:18px;color:var(--muted);line-height:1.9}.hero-actions{display:flex;align-items:center;gap:28px;margin-top:34px}.primary-btn{min-height:50px;display:inline-flex;align-items:center;justify-content:center;gap:12px;background:var(--blue);color:var(--paper);border:1px solid var(--blue);border-radius:10px;padding:13px 24px;font-weight:700;transition:background .2s,transform .2s}.primary-btn:hover{background:var(--blue-dark);transform:translateY(-2px)}.primary-btn:active{transform:translateY(0)}.primary-btn svg{width:20px}.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:700;min-height:44px}.text-link:hover{text-decoration:underline;text-underline-offset:5px}.trust-list{display:flex;flex-wrap:wrap;gap:22px;list-style:none;margin-top:30px;color:var(--muted);font-size:13px}.trust-list li{display:flex;align-items:center;gap:5px}.trust-list svg{width:16px;color:var(--green);stroke-width:2.5}
.hero-visual{position:relative;height:570px;display:grid;place-items:center}.orbit{position:absolute;border:1px solid oklch(0.56 0.21 256 / .18);border-radius:50%;transform:rotate(-18deg)}.orbit-one{width:480px;height:310px}.orbit-two{width:420px;height:460px}.phone-mock{position:relative;width:278px;height:540px;background:var(--ink);border-radius:42px;padding:9px;box-shadow:var(--shadow);transform:rotate(4deg);z-index:2}.phone-top{height:30px;background:var(--paper);border-radius:32px 32px 0 0;display:flex;justify-content:space-between;align-items:center;padding:0 20px;font-size:9px;font-weight:700}.speaker{width:54px;height:15px;border-radius:10px;background:var(--ink);margin-top:-8px}.phone-content{background:var(--paper);border-radius:0 0 32px 32px;height:calc(100% - 30px);padding:26px 20px}.mini-label{font-size:10px;letter-spacing:2px;color:var(--blue);font-weight:800}.phone-content h2{font-size:29px;line-height:1.2;margin-top:12px}.mini-muted{font-size:12px;color:var(--muted);margin:4px 0 24px}.pay-route{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}.pay-icon{width:54px;height:54px;display:grid;place-items:center;border-radius:16px;color:var(--paper);font-weight:800;font-size:22px}.wechat{background:var(--green);color:var(--paper)}.alipay{background:var(--blue);color:var(--paper)}.route-line{flex:1;display:flex;align-items:center;color:var(--blue)}.route-line span{height:1px;background:var(--line);flex:1}.route-line svg{width:20px}.mock-field{border:1px solid var(--line);padding:14px;border-radius:12px}.mock-field span,.mock-result span{display:block;font-size:11px;color:var(--muted)}.mock-field strong{font-size:24px;letter-spacing:-.5px}.mock-result{padding:16px 2px}.mock-result strong{font-size:13px}.mock-button{background:var(--blue);color:var(--paper);padding:12px;text-align:center;border-radius:10px;font-size:13px;font-weight:700}.float-note{position:absolute;z-index:3;background:var(--paper);border:1px solid var(--line);box-shadow:0 12px 30px oklch(0.3 0.05 255 / .1);border-radius:12px;padding:12px 16px;display:flex;align-items:center;gap:10px}.float-note svg{color:var(--blue)}.float-note strong,.float-note small{display:block;line-height:1.4}.float-note strong{font-size:13px}.float-note small{font-size:11px;color:var(--muted)}.note-safe{left:0;top:95px}.note-both{right:-10px;bottom:72px}
.quick-facts{border-block:1px solid var(--line);background:var(--paper)}.facts-grid{display:grid;grid-template-columns:repeat(4,1fr);padding-block:30px}.facts-grid>div{padding:0 28px;border-right:1px solid var(--line);display:flex;flex-direction:column}.facts-grid>div:first-child{padding-left:0}.facts-grid>div:last-child{border:0}.facts-grid strong{font-size:24px;color:var(--blue);line-height:1.3}.facts-grid span{font-size:12px;color:var(--muted);margin-top:6px}
.calc-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:100px;align-items:start}.section-tag{font-size:12px;letter-spacing:2.4px;font-weight:800;color:var(--blue);margin-bottom:16px}.section-intro h2,.section-heading h2,.process-heading h2,.safety-top h2{font-size:clamp(32px,4vw,46px);line-height:1.25;letter-spacing:-1.5px}.section-intro>p:not(.section-tag),.section-heading>p:not(.section-tag),.process-heading>p{color:var(--muted);margin-top:20px;max-width:38em}.sticky-intro{position:sticky;top:130px;padding-top:24px}.privacy-note{display:flex;align-items:flex-start;gap:12px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}.privacy-note svg{flex:none;color:var(--green)}.calculator-card{border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}.direction-tabs{display:grid;grid-template-columns:1fr 1fr;background:var(--soft);padding:5px;border-radius:12px;margin-bottom:28px}.direction{min-height:50px;border:0;background:transparent;border-radius:9px;color:var(--muted);font-weight:700;display:flex;align-items:center;justify-content:center;gap:8px;transition:background .2s,color .2s}.direction.active{background:var(--paper);color:var(--ink);box-shadow:0 2px 8px oklch(0.3 0.05 255 / .08)}.tiny-logo{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:7px;font-size:11px}.calculator-card label{display:block;font-size:13px;font-weight:700;margin-bottom:8px}.amount-input{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;padding:0 16px;gap:8px;background:var(--paper)}.amount-input:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px var(--pale-blue)}.amount-input>span:first-child{font-size:24px;color:var(--muted)}.amount-input>span:last-child{color:var(--muted)}.amount-input input{width:100%;min-width:0;border:0;outline:0;padding:14px 0;font-size:30px;font-weight:800;background:transparent;color:var(--ink)}.amount-presets{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:12px}.amount-presets button{min-height:44px;border:1px solid var(--line);background:var(--paper);border-radius:8px;color:var(--muted);font-size:12px}.amount-presets button:hover,.amount-presets button.selected{border-color:var(--blue);color:var(--blue);background:var(--pale-blue)}.field-help{font-size:12px;color:var(--muted);margin-top:10px}.fee-row{display:flex;justify-content:space-between;align-items:center;border-block:1px solid var(--line);padding:20px 0;margin-top:20px}.fee-row label{margin:0}.fee-row>div{display:flex;align-items:center;gap:5px}.fee-row input{width:70px;border:1px solid var(--line);border-radius:6px;padding:6px;text-align:right;outline:0}.fee-row input:focus{border-color:var(--blue)}.calc-result{padding:22px 0}.calc-result>div{display:flex;justify-content:space-between;align-items:center;font-size:13px}.calc-result>div+div{margin-top:10px}.calc-result strong{font-size:18px}.calc-result .receive-row span{font-weight:700}.calc-result .receive-row strong{font-size:30px;color:var(--blue)}.full-btn{width:100%}.calc-disclaimer{text-align:center;font-size:11px;color:var(--muted);margin-top:12px}
.features{background:var(--soft);border-block:1px solid var(--line)}.section-heading{text-align:center;margin-bottom:50px}.section-heading>p:not(.section-tag){margin-inline:auto}.section-heading.align-left{text-align:left}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.feature-grid article{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:28px;transition:transform .2s,border-color .2s}.feature-grid article:hover{transform:translateY(-4px);border-color:oklch(0.56 0.21 256 / .5)}.feature-grid article>svg{color:var(--blue);width:30px;height:30px}.feature-grid h3{font-size:19px;margin:22px 0 10px}.feature-grid p{font-size:14px;color:var(--muted)}
.process-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px}.process-heading{padding-top:12px}.process-heading .text-link{margin-top:22px}.steps{list-style:none}.steps li{display:grid;grid-template-columns:60px 1fr;gap:22px;padding:6px 0 40px;position:relative}.steps li:not(:last-child):after{content:"";position:absolute;left:22px;top:55px;bottom:6px;width:1px;background:var(--line)}.step-num{display:grid;place-items:center;width:45px;height:45px;border-radius:50%;background:var(--pale-blue);color:var(--blue);font-size:12px;font-weight:800}.steps h3{font-size:21px;margin-bottom:10px}.steps p{color:var(--muted);font-size:15px}.step-tip{display:inline-block;margin-top:12px;font-size:12px;color:var(--blue);background:var(--pale-blue);padding:4px 10px;border-radius:5px}
.safety-section{background:var(--ink);color:var(--paper)}.safety-top{display:grid;grid-template-columns:1fr 1fr;align-items:end;gap:80px;margin-bottom:48px}.safety-top>p{color:oklch(0.8 0.02 255)}.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.do-list,.dont-list{border-radius:14px;padding:32px}.do-list{background:oklch(0.31 0.03 255);border:1px solid oklch(0.4 0.03 255)}.dont-list{background:oklch(0.96 0.02 28);color:var(--ink)}.do-list h3,.dont-list h3{font-size:21px;margin-bottom:22px}.do-list ul,.dont-list ul{list-style:none}.do-list li{display:flex;gap:12px;font-size:14px;color:oklch(0.82 0.02 255)}.do-list li+li{margin-top:20px}.do-list li svg{flex:none;color:oklch(0.75 0.15 155);margin-top:3px}.do-list strong{display:block;color:var(--paper);font-size:16px;margin-bottom:3px}.dont-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px}.dont-list li+li{margin-top:16px}.dont-list li span{display:grid;place-items:center;flex:none;width:22px;height:22px;border-radius:50%;background:var(--danger);color:var(--paper);font-weight:800;line-height:1}.safety-banner{display:flex;gap:14px;align-items:center;margin-top:24px;padding:20px 24px;border:1px solid oklch(0.4 0.03 255);border-radius:12px;color:oklch(0.82 0.02 255);font-size:13px}.safety-banner svg{flex:none;color:oklch(0.75 0.15 155)}.safety-banner strong{color:var(--paper)}
.scenario-tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);margin-top:36px}.scenario-tabs button{border:0;background:none;padding:14px 22px;color:var(--muted);font-weight:700;border-bottom:2px solid transparent;min-height:50px}.scenario-tabs button[aria-selected=true]{color:var(--blue);border-bottom-color:var(--blue)}.scenario-panel{display:grid;grid-template-columns:1.25fr .75fr;gap:70px;background:var(--pale-blue);padding:42px;border-radius:0 0 16px 16px}.panel-label{font-size:12px;letter-spacing:1px;color:var(--blue);font-weight:700}.scenario-panel h3{font-size:28px;line-height:1.4;margin:12px 0 16px}.scenario-panel p:not(.panel-label){color:var(--muted)}.scenario-panel ul{list-style:none;align-self:center}.scenario-panel li{padding:12px 0;border-bottom:1px solid oklch(0.56 0.21 256 / .18);font-size:14px;font-weight:600}.scenario-panel li:before{content:"✓";color:var(--blue);margin-right:10px}
.articles-section{background:var(--soft);border-block:1px solid var(--line)}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.article-grid article{background:var(--paper);border-top:2px solid var(--blue);padding:28px 24px;border-radius:0 0 12px 12px}.article-index{font-size:11px;letter-spacing:1.5px;color:var(--blue);font-weight:700}.article-grid h3{font-size:21px;line-height:1.5;margin:16px 0}.article-grid article>p{font-size:14px;color:var(--muted)}details summary{cursor:pointer;list-style:none}details summary::-webkit-details-marker{display:none}.article-grid details{margin-top:20px}.article-grid summary{display:flex;align-items:center;justify-content:space-between;color:var(--blue);font-size:13px;font-weight:700;min-height:44px}.article-grid summary svg{width:17px;transition:transform .2s}.article-grid details[open] summary svg{transform:rotate(180deg)}.article-grid details p{font-size:14px;color:var(--muted);padding:10px 0 4px;border-top:1px solid var(--line)}
.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:90px}.copy-domain{display:inline-flex;align-items:center;gap:8px;margin-top:26px;color:var(--blue);font-size:13px;font-weight:700;min-height:44px}.copy-domain svg{width:18px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:20px;font-weight:700;padding:20px 0;min-height:64px}.faq-list summary svg{flex:none;width:20px;transition:transform .2s}.faq-list details[open] summary{color:var(--blue)}.faq-list details[open] summary svg{transform:rotate(180deg)}.faq-list details p{color:var(--muted);font-size:15px;padding:0 40px 24px 0}
.closing{background:var(--blue);color:var(--paper);padding:70px 0}.closing-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.closing p{font-size:11px;letter-spacing:3px;font-weight:700;margin-bottom:12px}.closing h2{font-size:clamp(28px,3.5vw,42px);line-height:1.35}.light-btn{display:flex;align-items:center;gap:10px;background:var(--paper);color:var(--blue);padding:14px 22px;border-radius:10px;font-weight:800;white-space:nowrap;transition:transform .2s}.light-btn:hover{transform:translateY(-2px)}footer{padding:60px 0 24px;background:var(--soft)}.footer-grid{display:grid;grid-template-columns:1.4fr .7fr .9fr .9fr;gap:50px}.footer-brand{font-size:20px;margin-bottom:18px}.footer-grid>div>p{font-size:13px;color:var(--muted);max-width:240px}.footer-links,.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13px}.footer-links strong,.footer-contact strong{font-size:14px;margin-bottom:8px}.footer-links a,.footer-contact span{color:var(--muted)}.footer-links a{min-height:28px}.footer-links a:hover{color:var(--blue)}.footer-bottom{display:flex;justify-content:space-between;gap:30px;border-top:1px solid var(--line);margin-top:44px;padding-top:22px;font-size:11px;color:var(--muted)}.footer-bottom p{max-width:70em}
dialog{width:min(calc(100% - 32px),520px);border:0;border-radius:16px;padding:28px;color:var(--ink);box-shadow:var(--shadow)}dialog::backdrop{background:oklch(0.2 0.02 255 / .6);backdrop-filter:blur(4px)}.dialog-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.dialog-head h2{font-size:23px}.dialog-head button{width:44px;height:44px;border:0;background:var(--soft);border-radius:8px;color:var(--ink)}dialog>p{color:var(--muted);font-size:14px}dialog ul{list-style:none;margin:20px 0 26px}dialog li{display:flex;gap:10px;font-size:14px;padding:10px 0;border-bottom:1px solid var(--line)}dialog li svg{flex:none;color:var(--green);width:20px}.toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);background:var(--ink);color:var(--paper);padding:10px 18px;border-radius:8px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:50}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:1000px){.desktop-nav{gap:16px}.desktop-nav a:nth-child(4){display:none}.hero-grid{gap:20px}.note-safe{left:-10px}.note-both{right:-10px}.calc-layout,.process-layout,.faq-layout{gap:50px}.feature-grid{grid-template-columns:repeat(2,1fr)}.article-grid{grid-template-columns:1fr}.article-grid article{padding:26px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}.footer-contact{display:none}}
@media(max-width:760px){.container{width:min(calc(100% - 32px),var(--container))}.section{padding:72px 0}.nav-wrap{width:calc(100% - 32px);height:66px}.desktop-nav,.nav-cta{display:none}.menu-btn{display:grid;place-items:center}.brand{font-size:20px}.brand-mark{width:36px;height:36px;border-radius:10px}.hero-grid{grid-template-columns:1fr;gap:0}.hero-copy{padding:56px 0 26px}.hero h1{font-size:43px;letter-spacing:-2px;margin:22px 0 18px}.hero-desc{font-size:16px;line-height:1.8}.availability{font-size:11px}.hero-actions{gap:20px;margin-top:26px}.primary-btn{padding:12px 18px}.trust-list{gap:12px;font-size:12px;margin-top:22px}.hero-visual{height:530px;transform:scale(.9);margin:-10px 0 -24px}.phone-mock{height:500px;width:255px}.phone-content{padding:22px 18px}.note-safe{left:-10px;top:65px}.note-both{right:-8px;bottom:60px}.facts-grid{grid-template-columns:1fr 1fr;padding-block:10px}.facts-grid>div{padding:20px 14px;border-bottom:1px solid var(--line)}.facts-grid>div:nth-child(2){border-right:0}.facts-grid>div:nth-child(3),.facts-grid>div:nth-child(4){border-bottom:0}.facts-grid>div:first-child,.facts-grid>div:nth-child(3){padding-left:0}.facts-grid strong{font-size:21px}.calc-layout,.process-layout,.faq-layout{grid-template-columns:1fr;gap:36px}.sticky-intro{position:static;padding-top:0}.section-intro h2,.section-heading h2,.process-heading h2,.safety-top h2{font-size:32px;letter-spacing:-1px}.section-intro>p:not(.section-tag),.section-heading>p:not(.section-tag),.process-heading>p{margin-top:14px}.privacy-note{margin-top:20px;padding-top:18px}.calculator-card{padding:20px 16px}.direction{font-size:13px;gap:5px}.amount-input input{font-size:27px}.amount-presets{gap:6px}.amount-presets button{font-size:11px}.feature-grid{grid-template-columns:1fr;gap:14px}.feature-grid article{padding:24px}.section-heading{margin-bottom:32px}.feature-grid h3{margin-top:16px}.process-heading br{display:none}.steps li{grid-template-columns:46px 1fr;gap:14px;padding-bottom:32px}.steps h3{font-size:19px}.safety-top{grid-template-columns:1fr;gap:18px;margin-bottom:30px}.safety-grid{grid-template-columns:1fr;gap:16px}.do-list,.dont-list{padding:24px 20px}.safety-banner{align-items:flex-start;padding:18px}.scenario-tabs{overflow-x:auto}.scenario-tabs button{padding:12px 18px;white-space:nowrap}.scenario-panel{grid-template-columns:1fr;gap:20px;padding:26px 20px}.scenario-panel h3{font-size:23px}.article-grid h3{font-size:20px}.faq-list summary{font-size:15px}.faq-list details p{font-size:14px}.closing{padding:50px 0}.closing-inner{flex-direction:column;align-items:flex-start}.footer-grid{grid-template-columns:1fr 1fr;gap:32px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:12px}.toast{bottom:calc(24px + env(safe-area-inset-bottom));white-space:nowrap}}
@media(max-width:390px){.hero h1{font-size:39px}.hero-actions{gap:14px}.hero-actions .text-link{font-size:14px}.trust-list{gap:8px}.hero-visual{transform:scale(.82);margin:-40px -20px -50px}.note-safe{left:0}.note-both{right:0}.direction{font-size:12px}.tiny-logo{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}