/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before{box-sizing:border-box;border:0 solid;margin:0;padding:0}::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){-webkit-appearance:button;appearance:button}::file-selector-button{-webkit-appearance:button;appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.relative{position:relative}.start{inset-inline-start:var(--spacing)}.table{display:table}}:root{--ink:#0d1b2a;--muted:#526275;--line:#dbe4ec;--surface:#f5f8fb;--blue:#1478ff;--blue-dark:#0a4db1;--red:#ff4057}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);font-family:var(--font-geist), "PingFang SC", "Microsoft YaHei", sans-serif;background:#fff;margin:0}a{color:inherit;text-decoration:none}main{min-height:100vh}.nav{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;max-width:1180px;height:78px;margin:0 auto;padding:0 28px;display:flex}.brand{letter-spacing:-.02em;align-items:center;gap:12px;font-weight:760;display:flex}.brand-mark{color:#fff;background:var(--ink);border-radius:11px;place-items:center;width:34px;height:34px;font-size:15px;display:grid;box-shadow:inset -8px -8px 18px #1478ff40}.nav-links{color:var(--muted);gap:26px;font-size:14px;display:flex}.nav-links a:hover,footer a:hover,.policy a{color:var(--blue)}.hero{max-width:1180px;margin:0 auto;padding:96px 28px 70px;position:relative;overflow:hidden}.hero:after{content:"";z-index:-1;background:radial-gradient(circle,#1478ff26,#1478ff00 68%);border-radius:50%;width:420px;height:420px;position:absolute;top:35px;right:-110px}.eyebrow{color:var(--blue);letter-spacing:.14em;font-size:12px;font-weight:800}.hero h1{letter-spacing:-.065em;max-width:780px;margin:20px 0 24px;font-size:clamp(48px,7vw,84px);line-height:1.04}.hero h1 span{color:var(--blue)}.hero-copy{max-width:670px;color:var(--muted);font-size:19px;line-height:1.75}.hero-actions{gap:12px;margin:34px 0 58px;display:flex}.button{border-radius:13px;justify-content:center;align-items:center;height:48px;padding:0 22px;font-size:14px;font-weight:720;display:inline-flex}.button.primary{background:var(--ink);color:#fff}.button.secondary{border:1px solid var(--line);background:#fff}.button:hover{transform:translateY(-1px)}.signal-card{border:1px solid #ffc4ca;border-left:5px solid var(--red);background:#fff7f8;border-radius:14px;max-width:760px;padding:20px 22px;box-shadow:0 18px 50px #0d1b2a14}.signal-top{color:var(--muted);align-items:center;gap:10px;display:flex}.status-dot{background:var(--red);border-radius:50%;width:9px;height:9px;box-shadow:0 0 0 5px #ff40571f}.signal-top strong{color:var(--red);margin-left:auto;font-size:14px}.signal-card p{color:var(--muted);margin:14px 0}.signal-actions{color:var(--blue);gap:22px;font-size:14px;font-weight:700;display:flex}.section{max-width:1180px;margin:0 auto;padding:78px 28px}.section-heading span{color:var(--blue);font-size:13px;font-weight:800}.section h2,.document h2{letter-spacing:-.035em}.section-heading h2{margin:10px 0 38px;font-size:clamp(34px,5vw,52px)}.feature-grid{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(4,1fr);display:grid}.feature{border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:260px;padding:28px}.feature-index{color:var(--blue);font-size:12px;font-weight:800}.feature h3{margin:44px 0 12px;font-size:23px}.feature p{color:var(--muted);line-height:1.75}.trust{background:var(--ink);color:#fff;border-radius:26px;grid-template-columns:.8fr 1.2fr;align-items:start;gap:70px;margin-bottom:70px;display:grid}.trust h2{margin:18px 0 0;font-size:38px}.pill{border:1px solid #ffffff40;border-radius:999px;padding:7px 11px;font-size:12px;display:inline-block}.trust ul{color:#dce6ef;gap:18px;margin:0;padding-left:22px;line-height:1.65;display:grid}.document{max-width:820px;margin:0 auto;padding:74px 28px 90px}.document-header{border-bottom:1px solid var(--line);margin-bottom:42px;padding-bottom:42px}.document-header h1{letter-spacing:-.06em;margin:16px 0;font-size:clamp(46px,7vw,70px)}.document-header p,.document section p,.document li{color:var(--muted);line-height:1.85}.document section{margin-top:42px;scroll-margin-top:20px}.document h2{margin:0 0 16px;font-size:25px}.document ul,.document ol{padding-left:24px}.support-card{border:1px solid var(--line);background:#fff;border-radius:18px;padding:28px 30px}.support-card.muted{background:var(--surface)}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line);padding:20px 0}.faq-list summary{cursor:pointer;font-weight:730;list-style-position:outside}.faq-list p{margin-bottom:0;padding-left:18px}.policy section{border-bottom:1px solid var(--line);padding-bottom:30px}.policy strong{color:var(--ink)}footer{border-top:1px solid var(--line);max-width:1180px;color:var(--muted);justify-content:space-between;margin:0 auto;padding:30px 28px 48px;font-size:13px;display:flex}footer div{gap:24px;display:flex}@media (max-width:800px){.nav{align-items:flex-start;height:auto;padding-top:18px;padding-bottom:18px}.nav-links{text-align:right;flex-direction:column;gap:12px}.hero{padding-top:68px}.hero-actions,.signal-actions{flex-wrap:wrap}.signal-top{flex-wrap:wrap;align-items:flex-start}.signal-top strong{width:100%;margin-left:19px}.feature-grid{grid-template-columns:1fr 1fr}.trust{grid-template-columns:1fr;gap:36px;margin-left:18px;margin-right:18px}}@media (max-width:520px){.brand span:last-child{display:none}.hero{padding-top:50px}.hero h1{font-size:46px}.hero-copy{font-size:17px}.hero-actions{flex-direction:column}.feature-grid{grid-template-columns:1fr}.feature{min-height:210px}.trust{padding:46px 26px}footer{flex-direction:column;gap:18px}}