:root {
  --ink:#142d35; --muted:#526970; --paper:#f5f8f7; --white:#fff;
  --line:#d7e3e1; --sea:#086f74; --deep:#092f3d; --foam:#daf4ee;
  --sun:#f5c77e; --radius:20px; --shadow:0 12px 35px #0b37400b;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--paper);color:var(--ink);
font:16px/1.75 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",
"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif}
a{color:var(--sea);text-decoration-thickness:1px;text-underline-offset:4px}
a:hover{text-decoration-thickness:2px}
a:focus-visible,button:focus-visible{outline:3px solid #bd7713;outline-offset:5px}
img,svg{max-width:100%;height:auto}
.container{width:min(1120px,calc(100% - 40px));margin:auto}
.skip{position:absolute;left:12px;top:-100px;z-index:10;background:white;padding:12px}
.skip:focus{top:10px}
.site-header{background:#fff;border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;
gap:24px;min-height:88px;padding-block:15px}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;
font-size:19px;font-weight:800;color:var(--deep);letter-spacing:-.6px;white-space:nowrap}
.brand img{width:38px;height:38px}
.brand small{font-weight:500;color:var(--sea)}
nav{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
nav a{font-size:14px;text-decoration:none;font-weight:600;color:var(--ink)}
.language{padding:7px 12px;border:1px solid var(--line);border-radius:999px}
.hero{padding:76px 0 44px}
.hero-grid{display:grid;grid-template-columns:1.25fr 1fr;align-items:center;gap:54px}
.eyebrow{color:var(--sea);font-size:12px;font-weight:800;letter-spacing:1.4px;
text-transform:uppercase;margin:0 0 18px}
h1,h2,h3{line-height:1.2;letter-spacing:-.035em}
h1{font-size:clamp(36px,5vw,62px);margin:0 0 24px;font-weight:800}
h2{font-size:clamp(26px,3vw,35px);margin:0 0 16px}
h3{font-size:20px;margin:0 0 12px}
p{margin:0 0 18px}
.lead{font-size:19px;color:var(--muted);max-width:660px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:27px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;
padding:12px 19px;background:var(--sea);color:white;text-decoration:none;
border:1px solid var(--sea);border-radius:11px;font-weight:700;font-size:14px}
.button:hover{background:var(--deep);text-decoration:none;border-color:var(--deep)}
.button.secondary{background:white;color:var(--sea);border-color:var(--line)}
.button.secondary:hover{background:var(--foam)}
.journey{position:relative;overflow:hidden;padding:32px;border-radius:28px;
color:white;background:var(--deep);box-shadow:var(--shadow)}
.journey:after{content:"";position:absolute;width:270px;height:270px;border-radius:50%;
background:#ffffff06;right:-160px;bottom:-110px;border:32px solid #ffffff04;pointer-events:none}
.journey h2{font-size:23px;max-width:300px}
.journey img{width:100%;height:110px;object-fit:cover;margin:4px 0 18px;border-radius:12px}
.step{display:grid;grid-template-columns:36px 1fr;gap:14px;margin:20px 0}
.step-number{color:var(--sun);font-weight:800;font-size:14px;padding-top:1px}
.step strong{display:block;font-size:16px}
.step p{font-size:13px;color:#c2dcdf;line-height:1.6;margin:3px 0 0}
.journey-note{font-size:11px;color:#aacbd0;margin:22px 0 0}
.trust-row{display:flex;flex-wrap:wrap;gap:14px 25px;font-size:12px;
color:var(--muted);padding:30px 0;border-bottom:1px solid var(--line)}
.trust-row span:before{content:"✓";margin-right:8px;color:var(--sea);font-weight:bold}
.section{padding:52px 0}
.section-intro{color:var(--muted);max-width:720px}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}
.guide-card{display:flex;flex-direction:column;background:white;border:1px solid var(--line);
border-radius:var(--radius);padding:25px;box-shadow:var(--shadow)}
.card-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px}
.tag{font-size:11px;text-transform:uppercase;font-weight:800;letter-spacing:.65px;color:var(--sea)}
.card-number{font-size:12px;color:#81969b}
.guide-card h3{font-size:21px;line-height:1.35}
.guide-card h3 a{color:var(--ink);text-decoration:none}
.guide-card h3 a:hover{color:var(--sea);text-decoration:underline}
.guide-card p{font-size:14px;color:var(--muted);margin:0 0 22px}
.read-link{margin-top:auto;font-size:13px;font-weight:800}
.tools{background:#eaf3f0;border-block:1px solid var(--line)}
.partner-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));
gap:18px;margin:25px 0 20px}
.partner-card{background:white;border:1px solid var(--line);border-radius:16px;
padding:25px;display:flex;flex-direction:column}
.partner-card h3{font-size:21px;margin-top:13px}
.partner-card p{font-size:14px;color:var(--muted)}
.partner-card .button{margin-top:auto;align-self:flex-start}
.partner-badge{font-size:10px;font-weight:800;letter-spacing:.5px;text-transform:uppercase;
align-self:flex-start;background:var(--foam);padding:4px 9px;border-radius:5px;color:var(--sea)}
.partner-card[data-affiliate="true"] .partner-badge{background:#fff0d9;color:#805218}
.partner-card .partner-note{font-size:11px;line-height:1.6;margin:13px 0 0}
.disclosure-note{font-size:12px;color:var(--muted);max-width:850px}
.telegram-box{background:var(--deep);border-radius:24px;color:white;padding:36px;
display:grid;grid-template-columns:1fr auto;gap:25px;align-items:center}
.telegram-box p{color:#c7dde0;max-width:680px}
.telegram-box .button{background:var(--sun);border-color:var(--sun);color:var(--deep)}
.telegram-box .small{font-size:12px;margin-bottom:0}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--muted);
padding-top:30px;margin-bottom:28px}
.article-header{max-width:880px;margin-bottom:30px}
.article-header h1{font-size:clamp(34px,4.6vw,53px)}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:55px;align-items:start}
.article-body{min-width:0}
.answer{background:var(--foam);border-left:4px solid var(--sea);
border-radius:0 16px 16px 0;padding:25px;margin-bottom:32px}
.answer h2{font-size:19px;margin-bottom:10px}
.answer p{margin:0;font-size:17px}
.article-body section{margin-bottom:36px}
.article-body section h2{font-size:27px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:13px;
background:#fff;margin-top:20px}
table{width:100%;border-collapse:collapse;min-width:510px;font-size:14px}
th,td{text-align:left;vertical-align:top;padding:15px 17px;border-bottom:1px solid var(--line)}
th{background:#eaf2ef;font-size:12px;font-weight:800}
tbody tr:last-child td{border-bottom:0}
td:first-child{font-weight:700;width:25%}
.checks{padding-left:22px}
.checks li{padding-left:5px;margin:10px 0}
.checks li::marker{color:var(--sea)}
.editorial-note{background:#fff8eb;border:1px solid #eadabd;border-radius:12px;
padding:17px;font-size:12px;color:#68572e;margin:26px 0 35px}
.source-list{padding-left:20px;font-size:14px}
.source-list li{margin:7px 0}
.small{font-size:13px;color:var(--muted)}
.sidebar{border-left:1px solid var(--line);padding-left:25px}
.sidebar h2{font-size:17px;letter-spacing:0;margin-bottom:20px}
.sidebar a{display:block;margin:0 0 19px;font-size:13px}
.sidebar .aside-channel{padding-top:20px;border-top:1px solid var(--line)}
.article-bottom{margin:35px 0 60px}
.legal{max-width:780px;padding:50px 0 65px}
.legal h1{font-size:clamp(32px,4vw,48px)}
.legal section{margin:30px 0}
.legal h2{font-size:24px}
.contact-email{padding:20px;border-radius:12px;background:var(--foam);overflow-wrap:anywhere}
.contact-email[hidden]{display:none}
.site-footer{background:white;border-top:1px solid var(--line);padding:38px 0}
.footer-grid{display:flex;justify-content:space-between;gap:25px;flex-wrap:wrap}
.footer-links{display:flex;gap:13px 22px;flex-wrap:wrap;max-width:510px}
.footer-links a{font-size:12px}
.footer-name{font-weight:800;margin-bottom:5px}
.footer-copy{font-size:12px;color:var(--muted);max-width:580px}
.footer-bottom{font-size:11px;color:var(--muted);margin-top:23px}
[lang="zh-Hans"] h1,[lang="zh-Hans"] h2,[lang="zh-Hans"] h3{letter-spacing:0;line-height:1.4}
[lang="zh-Hans"] .eyebrow{letter-spacing:.6px}
@media(max-width:960px){
 .hero-grid{grid-template-columns:1.1fr 1fr;gap:26px}
 .guide-grid{grid-template-columns:repeat(2,1fr)}
 .article-layout{grid-template-columns:minmax(0,1fr);gap:15px}
 .sidebar{border-left:0;border-top:1px solid var(--line);padding:25px 0 0}
 .sidebar a{display:inline-block;margin-right:24px}
 .header-inner{gap:18px}
 nav{gap:15px}
}
@media(max-width:680px){
 .container{width:calc(100% - 30px)}
 .header-inner{align-items:flex-start;flex-direction:column;gap:12px;min-height:0}
 nav{gap:12px 18px;width:100%}
 nav a{font-size:12px}
 .language{margin-left:auto;padding:4px 9px}
 .brand{font-size:18px}
 .hero{padding-top:38px}
 .hero-grid{grid-template-columns:1fr}
 .hero .lead{font-size:17px}
 .journey{padding:25px}
 .journey img{height:85px}
 .guide-grid{grid-template-columns:1fr}
 .section{padding:36px 0}
 .telegram-box{grid-template-columns:1fr;padding:25px}
 .telegram-box .button{justify-self:start}
 .trust-row{gap:10px 18px}
 .article-header h1{font-size:33px}
 .answer{padding:20px}
 .article-body section h2{font-size:25px}
 .legal{padding-top:35px}
 .actions .button{font-size:13px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{
 .site-header,.site-footer,.sidebar,.partner-grid,.telegram-box,.actions{display:none}
 body{background:#fff;color:#000;font-size:11pt}
 .container{width:100%}
 .article-layout{display:block}
 a{color:#000}
 .answer,.editorial-note{background:#fff;border:1px solid #aaa}
}