:root{color-scheme:light;--ink:#122744;--muted:#52657e;--blue:#1b4fba;--navy:#16366d;--line:#dce4ef;--paper:#f4f7fc;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Noto Sans TC",sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-size:1rem;line-height:1.7}a{color:var(--blue);text-underline-offset:.22em}a:hover{text-decoration-thickness:2px}a:focus-visible{outline:3px solid #dc6b20;outline-offset:5px;border-radius:4px}button,a{-webkit-tap-highlight-color:transparent}.skip{position:absolute;top:-8rem;left:1rem;z-index:5;padding:.7rem 1rem;background:white}.skip:focus{top:1rem}.site-header{background:#fff;border-bottom:1px solid var(--line)}.header-inner{max-width:1120px;margin:auto;padding:1.15rem 2rem;display:flex;align-items:center;justify-content:space-between;gap:1.25rem;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:.7rem;font-size:1.2rem;font-weight:750;letter-spacing:-.025em;text-decoration:none;color:var(--ink)}.brand-mark{width:38px;height:38px;display:grid;place-items:center;background:var(--navy);color:#fff;border-radius:11px;font-size:.875rem;letter-spacing:-.03em}.languages{display:flex;gap:.3rem;flex-wrap:wrap}.languages a{padding:.45rem .75rem;min-height:44px;display:flex;align-items:center;text-decoration:none;color:var(--muted);font-size:.9rem;border:1px solid transparent;border-radius:8px}.languages a:hover{background:var(--paper);color:var(--ink)}.languages a[aria-current="true"]{background:#eaf0ff;border-color:#ccdafb;color:#164498;font-weight:650}main{max-width:1120px;margin:auto;padding:3.5rem 2rem 1.5rem;outline:none}.locale[hidden]{display:none}.locale:not([hidden])~.locale:not([hidden]){margin-top:4rem}.eyebrow{margin:0 0 .55rem;color:var(--blue);font-size:.8rem;font-weight:750;letter-spacing:.09em}.intro h1{font-size:clamp(2rem,4.2vw,3.15rem);line-height:1.2;letter-spacing:-.035em;margin:0 0 .75rem;font-weight:740}.intro>p:last-child{margin:0 0 2rem;color:var(--muted);font-size:1.075rem}.contact{display:grid;grid-template-columns:1fr auto;gap:1.25rem 2rem;background:var(--navy);color:#fff;border-radius:18px;padding:1.75rem 2rem;margin-bottom:1.5rem;align-items:center}.contact h2{font-size:1.25rem;line-height:1.4;margin:0 0 .3rem}.contact p{margin:0;color:#e0eafb}.email{font-size:clamp(1.1rem,2.5vw,1.5rem);font-weight:650;color:white;display:inline-block;margin-top:.55rem;overflow-wrap:anywhere}.email-button{border-radius:9px;background:#fff;color:var(--navy);font-weight:650;padding:.8rem 1.15rem;text-decoration:none;display:flex;gap:1.25rem;align-items:center;justify-content:center;line-height:1.5;min-height:48px}.email-button:hover{background:#eaf0ff}.contact .contact-detail{grid-column:1/-1;border-top:1px solid #46618d;padding-top:1rem;font-size:.9rem;max-width:100%;line-height:1.7}.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.help-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:1.75rem 2rem;display:flex;flex-direction:column;min-width:0}.section-label{font-size:.8rem;font-weight:750;color:var(--blue);letter-spacing:.065em;margin:0 0 .5rem}.help-card h2{font-size:1.5rem;line-height:1.35;letter-spacing:-.025em;margin:0 0 1.15rem}.help-card ol{list-style:none;counter-reset:steps;padding:0;margin:0 0 1.5rem;display:grid;gap:1rem}.help-card li{counter-increment:steps;position:relative;padding-left:2.75rem}.help-card li:before{content:counter(steps);position:absolute;top:.1rem;left:0;background:#edf2fb;border:1px solid #dce6f7;color:#28529b;width:1.8rem;height:1.8rem;border-radius:50%;display:grid;place-items:center;line-height:1;font-size:.875rem;font-weight:700}.note{border-left:3px solid #a3b9dd;background:#f5f8fd;padding:1rem 1.05rem;margin-top:auto;border-radius:0 9px 9px 0;font-size:.95rem}.note p{margin:.4rem 0 0;color:var(--muted)}.reference{display:inline-block;margin-top:1.15rem;align-self:flex-start;font-size:.9rem;font-weight:600;line-height:1.6}footer{display:flex;gap:1rem;flex-wrap:wrap;justify-content:space-between;align-items:center;padding:1.8rem 0 .6rem;color:var(--muted);font-size:.875rem;border-bottom:0}footer>span{overflow-wrap:anywhere}footer>div{display:flex;gap:1.2rem;flex-wrap:wrap}footer a{color:var(--muted)}
@media(max-width:760px){.header-inner{padding:1rem 1.25rem;gap:.85rem}.languages{width:100%;gap:.15rem;justify-content:space-between}.languages a{padding:.4rem .55rem}main{padding:2rem 1.25rem 1rem}.help-grid{grid-template-columns:1fr}.contact{grid-template-columns:1fr;padding:1.4rem;gap:1.1rem}.email-button{justify-self:start}.contact .contact-detail{grid-column:auto}.help-card{padding:1.4rem}.help-card h2{font-size:1.4rem}footer{padding-top:1.5rem}.intro>p:last-child{font-size:1rem}}
@media(max-width:360px){main{padding-left:1rem;padding-right:1rem}.header-inner{padding-left:1rem;padding-right:1rem}.languages a{font-size:.875rem;padding:.35rem .4rem}.contact,.help-card{padding:1.15rem}.help-card li{padding-left:2.4rem}}
@media(prefers-reduced-motion:no-preference){a{transition:background-color .15s ease,color .15s ease}}
@media print{.site-header,.skip,.email-button{display:none}main{max-width:none;padding:0}.contact{background:#fff;color:#122744;border:1px solid #ccc}.contact p,.contact a{color:#122744}.help-grid{display:block}.help-card{break-inside:avoid;margin-top:1rem}footer{padding:1rem 0}}