*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bb-white);color:var(--bb-ink);font:16px/1.75 var(--bb-font);-webkit-font-smoothing:antialiased}button,input,select{font:inherit;color:inherit}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button{border:0}button,a,input,select,summary{outline-offset:4px}:focus-visible{outline:3px solid var(--bb-focus)}::selection{background:var(--bb-yellow);color:var(--bb-ink)}[hidden]{display:none!important}svg{flex-shrink:0;vertical-align:middle}img{max-width:100%;height:auto}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.45}h1{font-size:38px;font-weight:750;letter-spacing:-.035em}h2{font-size:25px;font-weight:700;letter-spacing:-.02em}h3{font-size:19px;font-weight:650}p{overflow-wrap:anywhere}button:disabled{cursor:not-allowed}.bb-container{width:min(var(--bb-max),calc(100% - 64px));margin-inline:auto}.bb-main:focus{outline:none}.bb-main{padding:42px 0 72px;min-height:600px}.bb-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.bb-skip{position:fixed;top:8px;left:8px;transform:translateY(-200%);padding:12px 20px;background:var(--bb-yellow);z-index:100}.bb-skip:focus{transform:none}.bb-header{border-top:5px solid var(--bb-yellow);background:var(--bb-white)}.bb-topbar{display:flex;align-items:center;justify-content:space-between;height:96px;gap:24px}.bb-brand{display:flex;align-items:center;gap:11px;min-height:44px}.bb-brand-word{font-size:37px;font-weight:850;letter-spacing:-2px;line-height:1}.bb-brand-word::after{content:'';display:inline-block;width:7px;height:7px;background:var(--bb-yellow);border-radius:50%;margin-left:4px}.bb-brand-cn{font-size:16px;font-weight:700}.bb-brand-divider{height:23px;width:1px;background:var(--bb-line);margin-inline:9px}.bb-brand-service{font-size:20px;letter-spacing:.06em;font-weight:500}.bb-toplinks{display:flex;gap:28px;align-items:center}.bb-toplink{display:flex;align-items:center;gap:6px;color:var(--bb-sub);font-size:13px;min-height:44px}.bb-toplink:hover{color:var(--bb-ink)}.bb-global-search{padding:0 0 21px;max-width:var(--bb-max)}.bb-search-form{display:flex;gap:16px;align-items:center;border:1px solid var(--bb-line);border-radius:12px;padding:6px 7px 6px 23px;box-shadow:var(--bb-shadow);height:64px}.bb-search-form>svg{color:var(--bb-sub)}.bb-search-form:focus-within{border-color:var(--bb-ink)}.bb-search-form input{min-width:0;flex:1;border:0;outline:0;background:transparent;height:48px;font-size:17px}.bb-search-form input::placeholder{color:var(--bb-muted)}.bb-search-submit{background:var(--bb-yellow);display:flex;align-items:center;justify-content:center;gap:22px;min-width:118px;height:50px;border-radius:8px;font-size:15px;font-weight:700;transition:background var(--bb-motion)}.bb-search-submit:hover{background:var(--bb-yellow-hover)}.bb-search-words{display:flex;align-items:center;gap:22px;font-size:12px;color:var(--bb-sub);min-height:44px;flex-wrap:wrap}.bb-search-words>span{color:var(--bb-muted)}.bb-search-words a{display:inline-flex;align-items:center;min-height:44px}.bb-search-words a:hover{text-decoration:underline;text-underline-offset:5px}.bb-nav{border-bottom:1px solid var(--bb-line)}.bb-nav-inner{display:flex;gap:52px}.bb-nav a{display:flex;align-items:center;justify-content:center;min-height:56px;border-bottom:3px solid transparent;font-size:15px;color:var(--bb-sub);padding:0 6px 9px}.bb-nav a[aria-current=page]{border-bottom-color:var(--bb-yellow);color:var(--bb-ink);font-weight:700}.bb-nav a:hover{color:var(--bb-ink)}.bb-eyebrow{font-size:13px;color:var(--bb-sub);letter-spacing:.08em;margin-bottom:12px;font-weight:500}.bb-lead{color:var(--bb-sub);font-size:16px;line-height:1.85;margin-top:14px;max-width:720px}.bb-page-intro{margin-bottom:34px;max-width:920px}.bb-page-intro h1{max-width:830px}.bb-text-link{font-size:14px;min-height:44px;display:inline-flex;align-items:center;gap:8px;text-decoration:underline;text-decoration-color:var(--bb-line);text-underline-offset:6px;transition:text-decoration-color var(--bb-motion)}.bb-text-link:hover{text-decoration-color:var(--bb-ink)}.bb-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:46px;padding:10px 22px;border:1px solid transparent;border-radius:8px;font-size:14px;font-weight:600;transition:background var(--bb-motion),border-color var(--bb-motion)}.bb-button-primary{background:var(--bb-yellow);color:var(--bb-ink)}.bb-button-primary:hover{background:var(--bb-yellow-hover)}.bb-button-secondary{background:var(--bb-white);border-color:var(--bb-line);color:var(--bb-ink)}.bb-button-secondary:hover{background:var(--bb-soft);border-color:var(--bb-sub)}.bb-muted{color:var(--bb-sub);font-size:14px}.bb-panel{padding:28px;border:1px solid var(--bb-line);border-radius:var(--bb-radius);background:var(--bb-white)}.bb-section{margin-top:50px}.bb-section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:25px}.bb-section-heading .bb-eyebrow{margin-bottom:8px}.bb-chip{display:inline-flex;align-items:center;padding:4px 11px;background:var(--bb-soft);border-radius:5px;font-size:12px;color:var(--bb-sub)}.bb-notice{padding:18px 22px;border-left:3px solid var(--bb-red);background:var(--bb-red-soft);font-size:14px;line-height:1.9;border-radius:0 8px 8px 0}.bb-empty{padding:36px 24px;color:var(--bb-sub);background:var(--bb-soft);border-radius:12px}.bb-channels{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:26px 0 34px}.bb-channel{position:relative;display:flex;align-items:flex-start;gap:12px;min-height:114px;padding:21px 17px;text-align:left;background:var(--bb-white);border:1px solid var(--bb-line);border-radius:10px;transition:border-color var(--bb-motion),background var(--bb-motion);min-width:0}.bb-channel:hover{border-color:var(--bb-sub);background:var(--bb-soft)}.bb-channel[aria-pressed=true]{border-color:var(--bb-ink);background:var(--bb-cream);box-shadow:inset 0 0 0 1px var(--bb-ink)}.bb-channel-icon{display:flex;align-items:center;justify-content:center;width:34px;height:34px;color:var(--bb-ink);flex-shrink:0}.bb-channel-copy{min-width:0;display:flex;flex-direction:column;gap:6px;padding-right:4px}.bb-channel strong{font-size:14px;font-weight:700;line-height:1.5;overflow-wrap:anywhere}.bb-channel small{font-size:12px;color:var(--bb-sub);line-height:1.6}.bb-channel-check{position:absolute;bottom:8px;right:9px;display:flex;align-items:center;justify-content:center;width:19px;height:19px;border-radius:50%;background:var(--bb-yellow)}.bb-article-list{border-top:1px solid var(--bb-line)}.bb-article-row{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:22px 4px;border-bottom:1px solid var(--bb-line);transition:background var(--bb-motion)}.bb-article-row:hover{background:var(--bb-cream)}.bb-article-row h3{font-size:17px;font-weight:600}.bb-article-row p{font-size:14px;color:var(--bb-sub);margin-top:7px;line-height:1.7}.bb-article-row>svg{color:var(--bb-muted)}.bb-row-tag{display:inline-block;margin-top:10px;font-size:11px;color:var(--bb-sub);background:var(--bb-soft);border-radius:4px;padding:2px 8px}.bb-help-panel{margin-top:56px;display:flex;align-items:center;gap:22px;padding:30px 0 0;border-top:1px solid var(--bb-line)}.bb-help-panel h2{font-size:21px}.bb-help-panel p{font-size:14px;color:var(--bb-sub);margin-top:6px}.bb-help-panel>.bb-button{margin-left:auto}.bb-help-icon{width:62px;height:62px;background:var(--bb-cream);display:grid;place-items:center;border-radius:50%;flex-shrink:0}.bb-footer{border-top:1px solid var(--bb-line);background:var(--bb-soft);padding:36px 0;color:var(--bb-sub)}.bb-footer-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}.bb-footer-brand{font-size:27px;letter-spacing:-1.6px;font-weight:750;color:var(--bb-ink)}.bb-footer p{font-size:12px;margin-top:4px}.bb-footer-links{display:flex;align-items:center;gap:24px;flex-wrap:wrap;font-size:12px}.bb-footer-links a{min-height:44px;display:flex;align-items:center}.bb-footer-links .bb-text-link{font-size:12px;text-decoration:none}.bb-footer small{font-size:11px}.bb-home-hero{display:flex;justify-content:space-between;align-items:center;gap:40px;padding:5px 0 30px}.bb-home-hero h1{font-size:44px;line-height:1.45;letter-spacing:-.035em}.bb-highlight{position:relative;z-index:0;white-space:nowrap}.bb-highlight::after{content:'';position:absolute;bottom:6px;left:1px;right:-3px;height:11px;background:var(--bb-yellow);z-index:-1}.bb-home-hero .bb-lead{max-width:650px}.bb-home-art{position:relative;width:225px;height:175px;flex-shrink:0;margin-right:35px}.bb-art-circle{position:absolute;width:143px;height:143px;border-radius:50%;background:var(--bb-cream);left:44px;top:14px}.bb-art-parcel{position:absolute;left:62px;top:42px;transform:rotate(-8deg);width:97px;height:91px;background:var(--bb-yellow);display:grid;place-items:center;border:1.5px solid var(--bb-ink);border-radius:11px}.bb-art-tag{display:flex;gap:7px;align-items:center;font-size:12px;background:var(--bb-white);border:1px solid var(--bb-line);border-radius:7px;position:absolute;left:3px;bottom:22px;padding:7px 11px;transform:rotate(-6deg)}.bb-art-tag svg{color:var(--bb-ink)}.bb-art-plane{position:absolute;right:8px;top:15px;transform:rotate(5deg)}.bb-entrances{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--bb-line);border-radius:14px;overflow:hidden}.bb-entrance{padding:28px 28px 23px;display:flex;flex-direction:column;border-right:1px solid var(--bb-line);transition:background var(--bb-motion)}.bb-entrance:last-child{border-right:0}.bb-entrance:hover{background:var(--bb-cream)}.bb-entrance-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.bb-icon-tile{display:flex;align-items:center;justify-content:center;width:48px;height:48px;background:var(--bb-soft);border-radius:12px}.bb-entrance:first-child .bb-icon-tile{background:var(--bb-yellow)}.bb-entrance-number{font-size:12px;font-weight:500;color:var(--bb-muted);font-variant-numeric:tabular-nums}.bb-entrance h2{font-size:23px;margin-bottom:9px}.bb-entrance p{color:var(--bb-sub);font-size:14px;margin-bottom:26px}.bb-entrance-action{display:flex;align-items:center;justify-content:space-between;font-size:14px;margin-top:auto;gap:10px}.bb-quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:42px;border-top:1px solid var(--bb-line)}.bb-quick-link{display:flex;align-items:center;gap:16px;padding:20px 0;border-bottom:1px solid var(--bb-line);font-size:15px;min-height:72px}.bb-quick-link>svg:first-child{color:var(--bb-sub)}.bb-quick-link>svg:last-child{margin-left:auto;color:var(--bb-muted)}.bb-quick-link:hover{color:var(--bb-red)}.bb-basics-band{display:flex;align-items:center;gap:24px;background:var(--bb-cream);border-radius:12px;padding:30px;margin-top:46px}.bb-basics-band .bb-eyebrow{font-size:12px;margin-bottom:4px}.bb-basics-band h2{font-size:23px}.bb-basics-band p:last-child{font-size:13px;color:var(--bb-sub);margin-top:8px}.bb-basics-band>.bb-button{margin-left:auto;white-space:nowrap}.bb-basics-icon{flex-shrink:0;width:56px}.bb-not-found{padding:30px 0}
@media(min-width:1600px){.bb-container{width:1200px}.bb-main{padding-top:46px}}
@media(max-width:1050px){.bb-channel{padding:17px 12px;gap:8px}.bb-channel-icon{width:26px}.bb-channel-icon svg{width:22px}.bb-channel strong{font-size:13px}.bb-footer-inner{flex-wrap:wrap}.bb-entrance{padding:23px}.bb-basics-band{flex-wrap:wrap}.bb-basics-band>.bb-button{margin-left:80px}}
@media(max-width:767px){.bb-container{width:calc(100% - 36px)}.bb-main{padding:27px 0 46px}.bb-topbar{height:78px;gap:10px}.bb-brand{gap:8px}.bb-brand-word{font-size:30px}.bb-brand-cn{font-size:13px}.bb-brand-divider{margin-inline:2px;height:18px}.bb-brand-service{font-size:15px;letter-spacing:0}.bb-toplinks{gap:0}.bb-toplinks .bb-toplink:first-child{display:none}.bb-toplink{font-size:12px}.bb-global-search{padding-bottom:4px}.bb-search-form{height:58px;padding:5px 5px 5px 14px;gap:8px}.bb-search-form input{font-size:16px;height:44px}.bb-search-form>svg{width:19px}.bb-search-submit{height:46px;min-width:70px;gap:6px;font-size:14px}.bb-search-submit svg{display:none}.bb-search-words{gap:15px;font-size:11px;flex-wrap:nowrap;overflow-x:auto}.bb-search-words>*{white-space:nowrap}.bb-nav-inner{gap:0;justify-content:space-between}.bb-nav a{font-size:13px;min-height:50px;padding:0 4px 7px}.bb-page-intro{margin-bottom:24px}.bb-page-intro h1,h1{font-size:28px;line-height:1.6;letter-spacing:-.03em}.bb-eyebrow{font-size:12px;margin-bottom:9px}.bb-lead{font-size:15px;margin-top:11px}.bb-home-hero{padding:0 0 25px;gap:0}.bb-home-hero h1{font-size:32px}.bb-home-hero .bb-lead{font-size:14px}.bb-home-art{display:none}.bb-entrances{grid-template-columns:1fr}.bb-entrance{border-right:0;border-bottom:1px solid var(--bb-line);padding:22px;display:grid;grid-template-columns:50px minmax(0,1fr);column-gap:17px;position:relative}.bb-entrance:last-child{border-bottom:0}.bb-entrance-top{grid-column:1;grid-row:1/4;margin:0;align-items:start}.bb-entrance-number{display:none}.bb-icon-tile{width:44px;height:44px;border-radius:10px}.bb-entrance h2{font-size:20px;margin:0 0 5px;grid-column:2}.bb-entrance p{font-size:13px;grid-column:2;margin:0 0 13px}.bb-entrance-action{font-size:13px;grid-column:2}.bb-section{margin-top:35px}.bb-section-heading{gap:12px;align-items:center;margin-bottom:18px}.bb-section-heading h2{font-size:22px}.bb-section-heading>.bb-text-link{font-size:12px;white-space:nowrap}.bb-quick-grid{grid-template-columns:1fr}.bb-quick-link{font-size:14px;min-height:65px;gap:13px}.bb-basics-band{padding:24px;gap:15px;margin-top:32px}.bb-basics-band h2{font-size:21px}.bb-basics-icon{display:none}.bb-basics-band>.bb-button{margin-left:0}.bb-help-panel{gap:14px;flex-wrap:wrap;margin-top:37px;padding-top:26px}.bb-help-icon{width:48px;height:48px}.bb-help-panel h2{font-size:20px}.bb-help-panel p{font-size:13px}.bb-help-panel>div:nth-child(2){flex:1}.bb-help-panel>.bb-button{margin-left:62px}.bb-footer{padding:26px 0}.bb-footer-inner{gap:18px}.bb-footer-links{gap:0 20px;font-size:12px}.bb-footer small{width:100%}.bb-channels{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:21px 0 25px}.bb-channel{padding:15px 11px;min-height:108px;gap:9px}.bb-channel-icon{width:23px}.bb-channel strong{font-size:12px;overflow-wrap:normal}.bb-channel small{font-size:11px}.bb-channel-copy{gap:5px}.bb-panel{padding:22px 18px}.bb-article-row{gap:15px;padding:19px 0}.bb-article-row h3{font-size:16px}.bb-article-row p{font-size:13px}.bb-text-link{font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
.bb-row-archive{color:var(--bb-red);margin-right:12px}
/* 第二輪：用背景層次與清楚的分區界線強化資訊結構。 */
.bb-topbar{height:96px}
.bb-brand-logo{display:block;width:188px;height:52px;object-fit:contain}
.bb-brand-service{font-weight:700}
.bb-search-band{background:var(--bb-soft);border-block:1px solid var(--bb-line)}
.bb-global-search{padding-top:20px;padding-bottom:10px}
.bb-search-form{background:var(--bb-white);box-shadow:none;border-color:var(--bb-line)}
.bb-nav-inner{gap:44px}
.bb-nav a{padding-inline:14px;min-width:105px}
.bb-main{padding-top:36px}
.bb-guide-support{margin-top:48px;background:var(--bb-soft);border:1px solid var(--bb-line);border-radius:var(--bb-radius);padding:30px}
.bb-guide-support .bb-section-heading h2{font-size:25px}
.bb-guide-shortcuts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:24px}
.bb-guide-shortcut{display:flex;align-items:center;gap:14px;padding:20px 16px;border:1px solid var(--bb-line);background:var(--bb-white);border-radius:10px}
.bb-guide-shortcut:hover{border-color:var(--bb-ink);background:var(--bb-cream)}
.bb-guide-shortcut h3{font-size:17px;margin-bottom:5px}
.bb-guide-shortcut p{font-size:14px;color:var(--bb-sub)}
.bb-guide-shortcut>div{flex:1}
.bb-guide-shortcut>.bb-icon-tile{width:44px;height:44px;border-radius:10px;background:var(--bb-cream);flex-shrink:0}
.bb-guide-support .bb-quick-grid{background:var(--bb-white);border:1px solid var(--bb-line);border-radius:10px;padding-inline:20px;gap:0 32px}
.bb-guide-support .bb-quick-link{font-size:15px;min-height:66px}
.bb-history-link{margin-top:16px;color:var(--bb-sub)}
.bb-help-panel{padding:28px 30px;border:1px solid var(--bb-line);border-left:5px solid var(--bb-yellow);border-radius:12px;background:var(--bb-cream);margin-top:36px}
.bb-help-icon{background:var(--bb-white)}
.bb-k-topic-nav{background:var(--bb-soft);border:1px solid var(--bb-line);border-radius:12px;padding:12px}
.bb-k-page>.bb-page-intro{border-bottom:1px solid var(--bb-line);padding-bottom:28px}
@media(max-width:1000px){.bb-guide-shortcuts{grid-template-columns:1fr}.bb-guide-shortcut{padding:16px 20px}}
@media(max-width:767px){
.bb-topbar{height:78px;gap:10px}.bb-brand-logo{width:140px;height:auto}.bb-brand-service{font-size:16px}
.bb-global-search{padding-top:14px;padding-bottom:4px}.bb-nav-inner{gap:0;justify-content:space-between}.bb-nav a{min-width:0;flex:1;padding-inline:8px;font-size:14px}
.bb-main{padding-top:28px}.bb-guide-support{padding:22px 16px;margin-top:32px}.bb-guide-support .bb-section-heading{align-items:flex-start;flex-direction:column;gap:8px}.bb-guide-support .bb-section-heading h2{font-size:22px}
.bb-guide-support .bb-quick-grid{padding-inline:14px}.bb-guide-shortcut h3{font-size:17px}.bb-guide-shortcut p{font-size:14px}
.bb-help-panel{padding:22px 18px}.bb-help-panel>.bb-button{margin-left:0;width:100%}.bb-help-panel h2{font-size:19px}.bb-help-panel p{font-size:14px}
}
/* 官網實際頁尾資訊；保留原始文字與去向，針對服務中心重排。 */
.bb-official-footer{border-top:4px solid var(--bb-yellow);background:var(--bb-footer-bg);padding:32px 0;color:var(--bb-footer-ink)}
.bb-official-footer a:focus-visible{outline-color:var(--bb-yellow)}
.bb-official-fraud{display:flex;gap:18px;align-items:flex-start;border-bottom:1px solid var(--bb-footer-line);padding:0 0 24px;margin-bottom:28px}
.bb-official-fraud-title{color:var(--bb-yellow);font-size:14px;font-weight:700;flex-shrink:0;min-height:44px;display:flex;align-items:center;text-decoration:underline;text-underline-offset:4px}
.bb-official-fraud p{font-size:14px;line-height:1.9;margin:0}
.bb-official-brand-row{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:24px}
.bb-official-logo{width:148px;height:40px;object-fit:contain}
.bb-official-payments{width:390px;max-width:100%;height:auto;object-fit:contain}
.bb-official-info{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;font-size:14px;line-height:1.9}
.bb-official-contact p,.bb-official-partners p{margin-bottom:6px}
.bb-official-contact a{display:inline-flex;align-items:center;min-height:44px;text-decoration:underline;text-underline-offset:4px}
.bb-official-bottom{display:flex;align-items:center;justify-content:space-between;gap:32px;color:var(--bb-footer-muted);border-top:1px solid var(--bb-footer-line);padding-top:24px;margin-top:24px;font-size:12px;line-height:1.8}
.bb-official-social{display:flex;gap:12px;flex-shrink:0}
.bb-official-social-link{display:grid;place-items:center;width:44px;height:44px;background:var(--bb-ink);border-radius:50%}
.bb-official-social-link img{width:20px;height:20px}
@media(max-width:767px){
.bb-official-footer{padding:26px 0}.bb-official-fraud{display:block;padding:16px}.bb-official-fraud-title{display:inline-flex;margin-bottom:6px}.bb-official-fraud p{font-size:13px}
.bb-official-brand-row{align-items:flex-start;flex-direction:column;gap:20px}.bb-official-info{grid-template-columns:1fr;gap:18px}.bb-official-bottom{flex-direction:column;align-items:flex-start;gap:20px}
}